Patent US3753937A successfully refreshed from Google Patents.
US3753937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoro olefin vinylidene fluoride elastomer
Assignee: 3M Co
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Filing: 1971-06-08
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Granted: 1973-08-21
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Expires: 1991-06-08
Abstract
Abstract FLUORO-OLEFINIC ELASTOMERS OF GREATLY IMPROVED PROCESSING CHARACTERISTICS ARE OBTAINED BY THE INCLUSION OF A MINOR AMOUNT OF AT LEAST ONE HIGH BOILING HIGH MOLECULAR WEIGHT ESTER CONTAINING ONE OR MORE FATTY ACIDS AND ONE OR MORE ALCOHOLS, AS A LUBRICITY, SOFTENING AND PLASTICIZING AID.
Inventors
- 👤 D Stivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |