Patent DE108175C successfully refreshed from Google Patents.
US2773089A
Expired / Lapsed
US
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Fluorinated olefinic nitriles
Assignee: EIDP Inc
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Filing: 1954-10-29
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Granted: 1956-12-04
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Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 Anderson John Lynde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:59
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/01; C07C255/10; C07C253/00; C07C253/30; C07D; C07D295/00; C07D295/04; C07D295/06; C07D295/067
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
A DIFFLUORONITRILE OF UP TO TEN CARBONS AND OF THE FORMULA
References Cited (Backward Citations)
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US2406153A
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US2439505A
Cited
US2541466A
Cited
US2617836A
Cited
US2674631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |