US3342777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition copolymers of polyfluoroke-tones and ethylenic compounds
Assignee: EIDP Inc
•
Filing: 1964-04-28
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Granted: 1967-09-19
•
Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward George Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:04
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/18; C; C08; C08G; C08G2/00; C08G2/18; C08G2/26; C10; C10M; C10M3/00; C10M7/00; C10M2213/00; C10M2213/04; C10M2213/06; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/026; C10M2217/06; C10M2221/00; C10M2221/02; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AN ADDITION COPOLYMER OF (A) AT LEAST ONE POLYFLUOROKETONE OF THE FORMULA
Claim 2
Dependent Claim
12 words
AN ADDITION COPOLYMER OF (A) AT LEAST ONE POLYFLUOROKETONE OF THE FORMULA
References Cited (Backward Citations)
US2988537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |