Patent US3197480A successfully refreshed from Google Patents.
US3197480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2 and 2, 4-(alpha hydroxypolyperhalocycloalkyl)-thiophenes, pyrroles, and furans; 2 and 2, 4-[(alpha hydroxyalpha, alpha dipolyperhalo hydrocarbon) methyl]-thiophenes, pyrroles and furans and process for making them
Assignee: EIDP Inc
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Filing: 1962-12-12
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Granted: 1965-07-27
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 David C England
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:07
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/33; C07D207/333; C07D207/34; C07D207/42; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42; C07D307/46; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/12; C07D333/14; C07D333/16; C07D333/22; C07D333/26; C07D333/30; C07D333/32; C07D333/38; C07D333/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
1 words
2,2,3,3,4,4-HEXAFLUORO-1-(2-PYRROLYL)CYCLOBUTANOL.
Claim 4
Dependent Claim
1 words
2,2,3,3,4,4-HEXAFLUORO-1-(2-PYRROLYL)CYCLOBUTANOL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |