Keeler; Frederick D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Keeler; Frederick D..The latest application filed is for "tamper-proof closure".
- Keeler; Frederick D. - Trumball CT
- Keeler; Frederick D. - Trumbull CT
| Patent | Date |
|---|---|
| Tamper-proof closure Grant RE31,496 - Keeler January 17, 1 | 1984-01-17 |
| Method for making a container closure with liner Grant 4,361,457 - Keeler , et al. November 30, 1 | 1982-11-30 |
| Tamper-proof closure cap and method of fabrication Grant 4,337,870 - Keeler July 6, 1 | 1982-07-06 |
| Tamper-proof closure Grant 4,153,174 - Keeler May 8, 1 | 1979-05-08 |
| Tamper-proof closure Grant 4,105,132 - Keeler August 8, 1 | 1978-08-08 |
| Apparatus for sealing plastic closures to plastic containers Grant 3,920,503 - Keeler November 18, 1 | 1975-11-18 |
| Tamper-proof bottle closure Grant 3,904,061 - Keeler September 9, 1 | 1975-09-09 |
| Container Closure With Liner And Methods Of Making The Same Grant 3,866,845 - Keeler , et al. February 18, 1 | 1975-02-18 |
| Thermoformed Closures Which Are Sealed To Containers By The Use Of Sonic Energy And The Method Of Sealing The Same Grant 3,773,205 - Keeler , et al. November 20, 1 | 1973-11-20 |
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