US3051677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer elastomer of vinylidenefluoride and hexafluoropropene
Assignee: EIDP Inc
•
Filing: 1957-04-29
•
Granted: 1962-08-28
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Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Dean R Rexford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/22; C08F214/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AN ELASTIC COPOLYMER OF ABOUT 70% TO 30% BY WEIGHT OF VINYLIDENE FLUORIDE AND FROM ABOUT 30% TO 70%
Claim 2
Dependent Claim
19 words
AN ELASTIC COPOLYMER OF ABOUT 70% TO 30% BY WEIGHT OF VINYLIDENE FLUORIDE AND FROM ABOUT 30% TO 70%
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |