Useful Information
Are you looking for information on how to identify the time period of a collectible or maybe the time period an item was patented well here is some useful information that might help you get a close date as to when your collectible was made.or what your item is worth. Hope this information is useful.
U. S. Patent Numbers and Corresponding Dates
These dates are a handy reference
1836 Patent Numbers Between 1 - 109
1837 Patent Numbers Between 110 - 545
1838 Patent Numbers Between 546 - 1,105
1839 Patent Numbers Between 1,106 - 1,464
1840 Patent Numbers Between 1,465 - 1,922
1841 Patent Numbers Between 1,923 - 2,412
1842 Patent Numbers Between 2,413 - 2,900
1843 Patent Numbers Between 2,901 - 3,394
1844 Patent Numbers Between 3,395 - 3,872
1845 Patent Numbers Between 3,873 - 4,347
1846 Patent Numbers Between 4,348 - 4,913
1847 Patent Numbers Between 4,914 - 5,408
1848 Patent Numbers Between 5,409 - 5,992
1849 Patent Numbers Between 5,993 - 6,980
1850 Patent Numbers Between 6,981 - 7,864
1851 Patent Numbers Between 7,865 - 8,621
1852 Patent Numbers Between 8,622 - 9,511
1853 Patent Numbers Between 9,512 - 10,357
1854 Patent Numbers Between 10,358 - 12,116
1855 Patent Numbers Between 12,117 - 14,008
1856 Patent Numbers Between 14,009 - 16,323
1857 Patent Numbers Between 16,324 - 19,009
1858 Patent Numbers Between 19,010 - 22,476
1859 Patent Numbers Between 22,477 - 26,641
1860 Patent Numbers Between 26,642 - 31,004
1861 Patent Numbers Between 31,005 - 34,044
1862 Patent Numbers Between 34,045 - 37,265
1863 Patent Numbers Between 37,266 - 41,046
1864 Patent Numbers Between 41,047 - 45,684
1865 Patent Numbers Between 45,685 - 51,783
1866 Patent Numbers Between 51,784 - 60,657
1867 Patent Numbers Between 60,658 - 72,958
1868 Patent Numbers Between 72,959 - 85,502
1869 Patent Numbers Between 85,503 - 98,459
1870 Patent Numbers Between 98,460 - 110,616
1871 Patent Numbers Between 110,617 - 122,303
1872 Patent Numbers Between 122,304 - 134,503
1873 Patent Numbers Between 134,504 - 146,119
1874 Patent Numbers Between 146,120 - 158,349
1875 Patent Numbers Between 158,350 - 171,640
1876 Patent Numbers Between 171,641 - 185,812
1877 Patent Numbers Between 185,813 - 198,732
1878 Patent Numbers Between 198,733 - 211,077
1879 Patent Numbers Between 211,078 - 223,210
1880 Patent Numbers Between 223,211 - 236,136
1881 Patent Numbers Between 236,137 - 251,684
1882 Patent Numbers Between 251,685 - 269,819
1883 Patent Numbers Between 269,820 - 291,015
1884 Patent Numbers Between 291,916 - 310,162
1885 Patent Numbers Between 310,163 - 333,493
1886 Patent Numbers Between 333,494 - 355,290
1887 Patent Numbers Between 355,291 - 375,719
1888 Patent Numbers Between 375,720 - 395,304
1889 Patent Numbers Between 395,305 - 418,664
1890 Patent Numbers Between 418,665 - 443,986
1891 Patent Numbers Between 443,987 - 466,314
1892 Patent Numbers Between 466,315 - 488,975
1893 Patent Numbers Between 488,976 - 511,743
1894 Patent Numbers Between 511,744 - 531,618
1895 Patent Numbers Between 531,619 - 552,501
1896 Patent Numbers Between 552,502 - 574,368
1897 Patent Numbers Between 574,369 - 596,466
1898 Patent Numbers Between 596,467 - 616,870
1899 Patent Numbers Between 616,871 - 640,166
1900 Patent Numbers Between 640,167 - 664,826
1901 Patent Numbers Between 664,827 - 690,384
1902 Patent Numbers Between 690,385 - 717,520
1903 Patent Numbers Between 717,521 - 748,566
1904 Patent Numbers Between 748,567 - 778,833
1905 Patent Numbers Between 778,834 - 808,617
1906 Patent Numbers Between 808,618 - 839,798
1907 Patent Numbers Between 839,799 - 875,678
1908 Patent Numbers Between 875,679 - 908,435
1909 Patent Numbers Between 908,436 - 945,009
1910 Patent Numbers Between 945,010 - 980,177
1911 Patent Numbers Between 980,178 - 1,013,094
1912 Patent Numbers Between 1,013,095 - 1,049,325
1913 Patent Numbers Between 1,049,326 - 1,083,266
1914 Patent Numbers Between 1,083,267 - 1,123,211
1915 Patent Numbers Between 1,123,212 - 1,166,418
1916 Patent Numbers Between 1,166,419 - 1,210,388
1917 Patent Numbers Between 1,210,389 - 1,251,457
1918 Patent Numbers Between 1,251,458 - 1,290,026
1919 Patent Numbers Between 1,290,027 - 1,326,898
1920 Patent Numbers Between 1,326,899 - 1,364,062
1921 Patent Numbers Between 1,364,063 - 1,401,947
1922 Patent Numbers Between 1,401,948 - 1,440,361
1923 Patent Numbers Between 1,440,362 - 1,478,995
1924 Patent Numbers Between 1,478,996 - 1,521,589
1925 Patent Numbers Between 1,521,590 - 1,568,039
1926 Patent Numbers Between 1,568,040 - 1,612,699
1927 Patent Numbers Between 1,612,700 - 1,654,520
1928 Patent Numbers Between 1,654,521 - 1,696,896
1929 Patent Numbers Between 1,696,897 - 1,742,180
1930 Patent Numbers Between 1,742,181 - 1,787,423
1931 Patent Numbers Between 1,787,424 - 1,839,189
1932 Patent Numbers Between 1,839,190 - 1,892,662
1933 Patent Numbers Between 1,892,663 - 1,941,448
1934 Patent Numbers Between 1,941,449 - 1,985,877
1935 Patent Numbers Between 1,985,878 - 2,026,515
1936 Patent Numbers Between 2,026,516 - 2,066,308
1937 Patent Numbers Between 2,066,309 - 2,104,003
1938 Patent Numbers Between 2,104,004 - 2,142,079
1939 Patent Numbers Between 2,142,080 - 2,185,169
1940 Patent Numbers Between 2,185,170 - 2,227,417
1941 Patent Numbers Between 2,227,418 - 2,268,539
1942 Patent Numbers Between 2,268,540 - 2,307,006
1943 Patent Numbers Between 2,307,007 - 2,338,080
1944 Patent Numbers Between 2,338,081 - 2,366,153
1945 Patent Numbers Between 2,366,154 - 2,391,855
1946 Patent Numbers Between 2,391,856 - 2,413,674
1947 Patent Numbers Between 2,413,675 - 2,433,823
1948 Patent Numbers Between 2,433,824 - 2,457,796
1949 Patent Numbers Between 2,457,797 - 2,492,943
1950 Patent Numbers Between 2,492,944 - 2,536,015
1951 Patent Numbers Between 2,536,016 - 2,580,378
1952 Patent Numbers Between 2,580,379 - 2,624,045
1953 Patent Numbers Between 2,624,046 - 2,664,561
1954 Patent Numbers Between 2,664,562 - 2,698,433
1955 Patent Numbers Between 2,698,434 - 2,728,912
1956 Patent Numbers Between 2,728,913 - 2,775,761
1957 Patent Numbers Between 2,775,762 - 2,818,566
1958 Patent Numbers Between 2,818,567 - 2,866,972
1959 Patent Numbers Between 2,866,973 - 2,919,442
1960 Patent Numbers Between 2,919,443 - 2,966,680
1961 Patent Numbers Between 2,966,681 - 3,015,102
1962 Patent Numbers Between 3,015,103 - 3,070,800
1963 Patent Numbers Between 3,070,801 - 3,116,486
1964 Patent Numbers Between 3,116,487 - 3,163,864
1965 Patent Numbers Between 3,163,865 - 3,226,728
1966 Patent Numbers Between 3,226,729 - 3,295,142
1967 Patent Numbers Between 3,295,143 - 3,360,799
1968 Patent Numbers Between 3,360,800 - 3,419,906
1969 Patent Numbers Between 3,419,907 - 3,487,469
1970 Patent Numbers Between 3,487,470 - 3,551,908
1971 Patent Numbers Between 3,551,909 - 3,631,538
1972 Patent Numbers Between 3,631,539 - 3,707,728
1973 Patent Numbers Between 3,707,729 - 3,781,913
1974 Patent Numbers Between 3,781,914 - 3,858,240
1975 Patent Numbers Between 3,858,241 - 3,930,270
1976 Patent Numbers Between 3,930,271 - 4,000,519
1977 Patent Numbers Between 4,000,520 - 4,065,811
1978 Patent Numbers Between 4,065,812 - 4,131,951
1979 Patent Numbers Between 4,131,952 - 4,180,866
1980 Patent Numbers Between 4,180,867 - 4,242,756
1981 Patent Numbers Between 4,242,757 - 4,308,621
1982 Patent Numbers Between 4,308,622 - 4,366,578
1983 Patent Numbers Between 4,366,579 - 4,423,522
1984 Patent Numbers Between 4,423,523 - 4,490,884
1985 Patent Numbers Between 4,490,885 - 4,562,595
1986 Patent Numbers Between 4,562,596 - 4,633,525
1987 Patent Numbers Between 4,633,526 - 4,716,593
1988 Patent Numbers Between 4,716,594 - 4,794,651
1989 Patent Numbers Between 4,794,652 - 4,890,334
1990 Patent Numbers Between 4,890,335 - 4,980,926
and counting
What's my Collectible Cost?

Are you looking to find out what your item is worth, as many people think that online auctions are the indicator of what an item is worth but they give a false sense of worth as they are driven by the need to acquire the item with the least amount of expenditure.

Onilne auction tend to deflate an item say for example you are a diecast collector and you are looking for a Hotwheels Redline Club exclusive diecast.
Item issue price is 19.95 plus they charge you 4.95 for shipping so you have a total of 24.90 that is they don't charge sales tax.
You list you item on an online auction such as ebay
The auction company charges a listing fee say it is 1.00
your item cost you 25.90 and if your item sales they charge you a final value fee and lets say it was also 1.00 now you are up to 26.90 into the item out of your pocket now say you use their payment acceptance service now they charge you a fee to accept payment and for sake of simplicity lets say it is 1.00 to accept the payment now you are into the item a grand total of 27.90

        Item                                19.95
        shipping fee                    4.95
        listing fee                         1.00
        final value fee                 1.00
        accept payment fee        1.00
so far the total is                   27.90

Now you list your item at 19.99 and it sell at 19.99 you have just basically paid some else to take your item off your hands because you have just lost  7.91  and that is if the fees aren't any higher that the example.

So if you want to find out the estimated value of an item there are services that appraise an item.

Just to buy and speculate like the example above is not making your fortune on an online auction service, as most of the sellers don't realize that they are actually loosing not gaining. Granted there are the exception and I have seen lots of them, so do not let this example dampen your enthusiasm for making your million online

There are price guides available for lots of different types of collectibles and they are as the title suggest a guide not the set in stone value of your item.

The value of an item is always driven by demand and who is willing to pay the highest price for any given item.

So enjoy collecting and hope you do make your million.
           Barcodes ?

In 1969, a committee was formed by the major grocery food chains and some of their suppliers to work on a universal barcode system that was cost effective. They got proposals from the leading technology companies of the time and accepted one from IBM in 1973.
June 26th, 1974, a ten pack of barcoded Wrigley's chewing gum was the first item scanned by a modern UPC scanner.
And the barcode became reality

The bar code was an idea  by
Norman Woodland in 1948 and he started out using Morse code as the basis for the barcode.
      Zip Codes ?
The US Post Office Department devised a plan to speed handling and delivery of letter mail. By this time most businesses had automated mailing systems that could easily handle the 5 digits that would allow mailings to bypass as many as six mail-handling steps. Zip codes went into effect on July 1, 1963. ZIP stood for Zoning Improvement Plan.

                  Postal Zones
This was brought about by the use of Postal zones which was started in 1943 during WWII. They were necessary because many postal clerks had gone into the service and the new inexperienced postal clerks were having trouble sorting the mail. The zone system was put in place to make things easier.
These zones were usually 1 or 2 digits following the city name and later became necessary to create a more complex series of numbers to increase the speed of delivery.
                      9 Digit Zip Code
Now not only is the 5 digit zip code but this has been increased to add another 4 digits to the zip code for the now in use system but is not required to be used as of yet.