US2836582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of trifluoroethylene and vinyl carboxylates
Assignee: 3M Co
•
Filing: 1954-12-14
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Granted: 1958-05-27
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Expires: 1974-12-14
Abstract
No abstract record available.
Inventors
- 👤 John M Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:30
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/182; C08F18/00; C08F18/02; C08F18/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A COPOLYMER OF ABOUT 5 TO ABOUT 99 MOLE PERCENT TRIFLUOROETHYLENE AND CORRESPONDINGLY ABOUT 95 TO ABOUT 1 MOLE PERCENT OF A VINYL CARBOXYLATE HAVING AT LEAST 5 CARBON ATOMS.
Claim 2
Dependent Claim
30 words
A COPOLYMER OF ABOUT 5 TO ABOUT 99 MOLE PERCENT TRIFLUOROETHYLENE AND CORRESPONDINGLY ABOUT 95 TO ABOUT 1 MOLE PERCENT OF A VINYL CARBOXYLATE HAVING AT LEAST 5 CARBON ATOMS.
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |