Cambridge Research and Development Group
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cambridge Research and Development Group.The latest application filed is for "anti-fertility composition and method".
- Cambridge Research and Development Group - Westport CT
| Patent | Date |
|---|---|
| Anti-fertility composition and method Grant 4,252,787 - Sherman , et al. February 24, 1 | 1981-02-24 |
| System for nullifying signal processor distortions Grant 3,906,384 - Schiffman September 16, 1 | 1975-09-16 |
| Plural chambered squeeze tube Grant 3,876,111 - Swain April 8, 1 | 1975-04-08 |
| Plural Chambered, Gravity Oriented Dispenser Grant 3,851,800 - Swain December 3, 1 | 1974-12-03 |
| Hand Squeezable, Plural Chambered, Liquid Dispenser Grant 3,850,346 - Richardson , et al. November 26, 1 | 1974-11-26 |
| Speech Compressor-expander With Signal Sample Zero Reset Grant 3,846,827 - Eppler, Jr. November 5, 1 | 1974-11-05 |
| Speech Compressor-expander Grant 3,828,361 - Schiffman August 6, 1 | 1974-08-06 |
| Variable Delay Line Signal Processor For Sound Reproduction Grant 3,786,195 - Schiffman January 15, 1 | 1974-01-15 |
| Tablet Dispenser Grant 3,651,927 - Richardson , et al. March 28, 1 | 1972-03-28 |
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