Check the age of a U.S. Patent,
Reissue,
Design, or Trademark by its number - 1836 to 1960.
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1st |
1st Reissue |
1st |
1st |
| 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1958 1859 1860 |
1 110 546 1,061 1,465 1,923 2,413 2,901 3,395 3,873 4,348 4,914 5,409 5,993 6,981 7,865 8,622 9,512 10,358 12,117 14,009 16,324 19,010 22,477 26,642 |
1 7 20 30 36 49 60 67 78 91 105 128 158 184 209 229 258 286 337 420 517 643 874 |
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| 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 |
31,005 34,045 37,266 41,047 45,685 51,784 60,658 72,959 85,503 98,460 110,617 122,304 134,504 146,120 158,350 171,641 185,813 198,733 211,078 223,211 |
1,106 1,253 1,369 1,596 1,844 2,140 2,430 2,830 3,250 3,784 4,223 4,687 5,216 5,717 6,200 6,831 7,452 8,020 8,529 9,017 |
1,366 1,508 1,703 1,879 2,018 2,239 2,533 2,858 3,304 3,810 4,547 5,452 6,336 7,083 7,969 8,884 9,686 10,385 10,975 11,567 |
1 122 608 1.099 1,591 2,150 3,288 4,247 5,463 6,918 7,790 |
| 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 |
236,137 251,685 269,820 291,016 310,163 333,394 355,291 375,720 395,305 418,665 443,987 466,315 488,976 511,744 531,619 552,502 574,369 596,467 616,871 640,167 |
9,523 9,994 10,265 10,432 10,548 10,677 10,793 10,892 10,978 11,053 11,137 11,217 11,298 11,397 11,461 11,520 11,581 11,646 11,706 11,798 |
12,082 12,647 13,508 14,528 15,678 16,451 17,047 17,995 18,830 19,553 20,439 21,275 22,092 22,994 23,922 25,037 26,482 28,113 29,916 32,055 |
8,139 8,973 9,920 10,822 11,843 12,910 13,939 15,072 16,131 17,360 18,775 20,537 22,274 23,951 25,757 27,586 29,399 31,070 32,308 33,957 |
| 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 |
664,827 690,385 717,521 748,567 778,834 808,618 839,799 875,679 908,436 945,010 980,178 1,013,095 1,049,326 1,083,267 1,123,212 1,166,419 1,210,389 1,251,458 1,290,027 1,326,899 |
11,879 11,960 12,070 12,189 12,299 12,428 12,587 12,738 12,906 13,066 13,189 13,346 13,504 13,668 13,858 14,040 14,238 14,417 14,582 14,785 |
33,813 35,547 36,187 36,723 37,280 37,766 38,391 38,980 39,737 40,424 41,063 42,073 43,415 45,098 46,813 48,358 50,117 51,629 52,836 54,359 |
35,678 37,606 39,612 41,798 43,956 48,446 59,014 66,892 72,083 76,267 80,506 84,711 89,731 94,796 101,613 107,875 114,666 120,005 124,066 128,274 |
| 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 |
1,364,063 1,401,948 1,440,362 1,478,996 1,521,590 1,568,040 1,612,790 1,654,521 1,696,897 1,742,181 1,787,424 1,839,190 1,892,663 1,941,449 1,985,878 2,026,516 2,066,309 2,104,004 2,142,080 2,185,170 |
15,018 15,257 15,513 15,739 15,974 16,240 16,515 16,841 17,176 17,550 17,917 18,312 18,705 19,038 19,409 19,804 20,226 20,610 20,959 21,311 |
56,844 60,121 61,748 63,675 66,346 69,170 71,772 74,159 77,347 80,254 82,966 85,903 88,847 91,258 94,179 98,045 102,601 107,738 112,765 118,358 |
138,556 150,210 163,003 177,848 193,597 207,437 222,401 236,987 251,129 265,655 278,906 290,313 299,926 309,066 320,441 331,338 342,070 353,324 363,536 374,062 |
| 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 |
2,227,418 2,268,540 2,307,007 2,338,081 2,366,154 2,391,856 2,413,675 2,433,824 2,457,797 2,492,944 2,536,016 2,580,379 2,624,046 2,664,562 2,698,434 2,728,913 2,775,762 2,818,567 2,866,973 2,919,443 |
21,683 21,992 22,242 22,415 22,585 22,706 22,827 22,957 23,068 23,186 23,315 23,449 23,612 23,763 23,918 24,105 24,263 24,413 24,584 24,761 |
124,503 130,989 134,717 136,946 139,862 143,386 146,165 148,267 152,235 156,686 161,404 165,568 168,527 171,241 173,777 176,490 179,467 181,829 184,204 186,973 |
384,047 392,581 399,378 404,974 411,001 418,494 426,610 435,590 441,742 443,654 535,490 552,624 568,680 584,242 600,188 618,396 639,154 656,643 671,998 690,716 |
