US3682872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoro(3-phenoxypropyl vinyl ether) monomer and copolymers made therefrom
Assignee: EIDP Inc
•
Filing: 1970-03-18
•
Granted: 1972-08-08
•
Expires: 1990-03-18
Abstract
Abstract A NOVEL PERFLUORO(3-PHENOXYPROPYL VINYL ETHER) MONOMER AND COPOLYMERS OF SAID MONOMER WITH AT LEAST ONE FLUORINE CONTAINING ETHYLENICALLY UNSATURATED COMONOMER, SAID COPOLYMER CONTAINING ABOUT 0.2-3.0 MOLE PERCENT OF PERFLUORO(3-PHENOXYPROPYL VINYL ETHER) UNITS.
Inventors
- 👤 Donald F Brizzolara
- 👤 Richard W Quarles Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24; C08F214/00; C08F214/18; C08F214/184; C08F214/26; C08F214/262
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |