US2479367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of fluoroethylene interpolymers
Assignee: EIDP Inc
•
Filing: 1945-04-21
•
Granted: 1949-08-16
•
Expires: 1965-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert M Joyce
- 👤 John C Sauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; C08F214/00; C08F214/18; C08F214/26; C08F214/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR796026A
Cited
US2278415A
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US2342400A
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US2328510A
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US2362094A
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US2388225A
Cited
US2362960A
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US2393967A
Cited
US2419009A
Cited
US2409948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |