US2585529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isopropenyl fluoride polymers
Assignee: EIDP Inc
•
Filing: 1946-07-30
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Granted: 1952-02-12
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Expires: 1966-07-30
Abstract
No abstract record available.
Inventors
- 👤 Paul R Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:40
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/182; C08F210/00; C08F210/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
A FLUORINE-CONTAINING ORGANIC ADDITION POLYMER OF ETHYLENICALLY UNSATURATED ONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF ISOPROPENYL FLUORIDE AND A MIXTURE CONSISTING OF ISOPROPENYL FLUORIDE AND A MEMBER OF THE GROUP CONSISTING OF ETHYLENE, ACRYLONITRILE, VINYL ACETATE, STYRENE, VINYL FLUORIDE, METHYL ACRYLATE, VINYL ACETYLENE, ALLYLIDENE DIACETATE AND BUTADIENE, SAID MIXTURE CONTAINING AT LEAST 5% OF ISOPROPENYL FLUORIDE.
References Cited (Backward Citations)
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US2337681A
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US2401850A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |