Patent US3418295A successfully refreshed from Google Patents.
US3418295A
Expired / Lapsed
US
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Polymers and their preparation
Assignee: EIDP Inc
•
Filing: 1965-04-27
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Granted: 1968-12-24
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Expires: 1985-04-27
Abstract
No abstract record available.
Inventors
- 👤 Schoenthaler Arnold Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C09; C09D; C09D163/00; C09D163/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2580901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |