Patent US2992279A successfully refreshed from Google Patents.
US2992279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-iodo, 2-trifluoromethyl perfluorocycloalkanes
Assignee: Individual
•
Filing: 1956-08-28
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Granted: 1961-07-11
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Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Haszeldine Robert Neville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:28
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/278; C07C17/013; C07C17/04; C07C17/093; C07C17/10; C07C17/20; C07C17/202; C07C17/204; C07C17/23; C07C17/25; C07C23/00; C07C23/02; C07C23/06; C07C23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
ORGANIC FLUORINE COMPOUNDS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
ORGANIC FLUORINE COMPOUNDS HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |