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