Song; John S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Song; John S..The latest application filed is for "dispensing closure".
- Song; John S. - Evanston IL
- Song; John S. - Addison IL
| Patent | Date |
|---|---|
| Dispensing closure Grant D320,939 - Hofmann , et al. October 22, 1 | 1991-10-22 |
| Press-open side dispensing closure Grant 5,022,566 - Song , et al. June 11, 1 | 1991-06-11 |
| Tamper evident container closure Grant 4,901,892 - Song February 20, 1 | 1990-02-20 |
| Plant tissue culture vessel and filter Grant 4,670,398 - Song June 2, 1 | 1987-06-02 |
| Plant culture vessel Grant 4,358,908 - Song November 16, 1 | 1982-11-16 |
| Plant culture container Grant 4,224,765 - Song September 30, 1 | 1980-09-30 |
| Reusable sealed plastic cover Grant 3,998,354 - Song December 21, 1 | 1976-12-21 |
| Easily Openable Sealed Plastic Closure Grant 3,744,675 - Song July 10, 1 | 1973-07-10 |
| Tamper-proof Overcap For Can Grant 3,684,124 - Song August 15, 1 | 1972-08-15 |
| Easily Openable Sealed Plastic Closure Method And Apparatus Grant 3,567,061 - Song March 2, 1 | 1971-03-02 |
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