US3759883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorotrifluoroethylene and process for preparing them cold flow resistant homogeneous copolymers of tetrafluoroethylene and
Assignee: Solvay Solexis Inc
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Filing: 1971-11-16
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Granted: 1973-09-18
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Expires: 1991-11-16
Abstract
Abstract GRANULAR COPOLYMERS OF TETRAFLUOROETHYLENE AND BETWEEN ABOUT 0.05 MOL PERCENT AND ABOUT 0.50 MOL PERCENT OF CHLOROTRIFLUOROETHYLENE HAVE SUPERIOR PHYSICAL PROPERTIES AND ARE ADAPTED FOR MOLDING INTO OBJECT HAVING ENHANCED RESISTANCE TO COLD FLOW UNDER LOAD.
Inventors
- 👤 H Kaufman
- 👤 M Mueller
- 👤 P Salatiello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:46
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/40; C08J2327/00; C08J2327/02; C08J2327/12; C08J2327/18; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |