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| 1932 | Pat Pending, 3 Barrel, Outside Hinge, Flat Bottom | | 1933 | Pat Pending, 3 Barrel, Outside Hinge, Flat Bottom |
| 1934 | Pat Pending, 3 Barrel, Outside Hinge, Flat Bottom, 1/4 inch shorter | | 1935 | Pat Pending, 3 Barrel, Outside Hinge, Flat Bottom |
| 1936 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom, End of square Corners | | 1937 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom, Rounded Corner |
| 1938 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom | | 1939 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom |
| 1940 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom | | 1941 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom, Steel Case, Black Crackle |
| 1942 | Pat 2062395, 4 Barrel, Inside Hinge, Flat Bottom, Steel Case, Black Crackle | | 1943 | Pat 2062395, 3 Barrel, Inside Hinge, Round Bottom, Steel Case, Black Crackle |
| 1944 | Pat 2062395, 3 Barrel, Inside Hinge, Round Bottom, Steel Case, Black Crackle | | 1945 | Pat 2062395, 3 Barrel, Inside Hinge, Round Bottom, Steel Case, Black Crackle |
| 1946 | Pat 2062395, 3 Barrel, Inside Hinge, Canned Bottom, Nickel Case | | 1947 | Pat 2062395, 3 Barrel, Inside Hinge, Canned Bottom |
| 1948 | Pat 2062395, 3 Barrel, Inside Hinge, Canned Bottom | | 1949 | Pat 2062395, 3 Barrel, Inside Hinge, Canned Bottom |
| 1950 | Pat 2062395, 5 Barrel, Inside Hinge, Canned Bottom | | 1951 | Pat 2062395, 5 Barrel, Inside Hinge, Canned Bottom |
| 1952 | Pat 2062395, 5 Barrel, Inside Hinge, Canned Bottom | | 1953 | Pat 2517191, 5 Barrel, Inside Hinge, Canned Bottom |
| 1954 | Pat 2517191, 5 Barrel, Inside Hinge, Canned Bottom | | 1955 | Pat 2517191, 5 Barrel, Inside Hinge, Canned Bottom |
| 1956 | Pat 2517191, 5 Barrel, Inside Hinge, Canned Bottom | | 1957 | Pat 2517191, 5 Barrel, Inside Hinge, Canned Bottom, Todays Design |
| 1958 | Pat 2517191, .... Zippo .... 5 Barrel, Inside Hinge | | 1959 | Pat 2517191, .... Zippo ... 5 Barrel, Inside Hinge |
| 1960 | Pat 2517191, ... Zippo ... 5 Barrel, Inside Hinge | | 1961 | Pat 2517191, ... Zippo .. 5 Barrel, Inside Hinge |
| 1962 | Pat 2517191, .. Zippo .. 5 Barrel, Inside Hinge | | 1963 | Pat 2517191, .. Zippo . 5 Barrel, Inside Hinge |
| 1964 | Pat 2517191, . Zippo . 5 Barrel, Inside Hinge | | 1965 | Pat 2517191, . Zippo 5 Barrel, Inside Hinge |
| 1966 | Pat 2517191, |||| Zippo |||| 5 Barrel, Inside Hinge | | 1967 | Pat 2517191, |||| Zippo ||| 5 Barrel, Inside Hinge |
| 1968 | ||| Zippo ||| | | 1969 | ||| Zippo || |
| 1970 | || Zippo || | | 1971 | || Zippo | |
| 1974 | //// Zippo //// | | 1975 | //// Zippo /// |
| 1976 | /// Zippo /// | | 1977 | /// Zippo // |
| 1978 | // Zippo // | | 1979 | / Zippo// Error Date |
| 1979 | // Zippo / | | 1980 | / Zippo / |
| 1985 | \\\ Zippo \\ | | 1986 | \\ Zippo \\ |
| 1986 | G to L, Zippo || | | 1987 | A to L, Zippo ||| |
| 1988 | A to L, Zippo IV | | 1989 | A to L, Zippo V |
| 1990 | A to L, Zippo VI | | 1991 | A to L, Zippo VII |
| 1992 | A to L, Zippo VIII | | 1993 | A to L, Zippo IX |
| 1994 | A to L, Zippo X | | 1995 | A to L, Zippo XI |
| 1996 | A to L, Zippo XII | | 1997 | A to L, Zippo XIII |
| 1998 | A to L, Zippo XIV | | 1999 | A to L, Zippo XV |
| 2000 | A to L, Zippo XVI | | 2000 | A to L, Zippo 2000 XIV |
After 2000 the date codes are the month on the left A to L and the year on the left 01 to 10
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