Patent NL7601773A successfully refreshed from Google Patents.
Patent US3140298A successfully refreshed from Google Patents.
US3140298A
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Selected hydroxypolyfluoroperhalocyclobutanes and their preparation from polyfluoroperhalocyclobutanones and selected unsaturates
Assignee: EIDP Inc
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Filing: 1959-04-02
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Granted: 1964-07-07
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Expires: 1979-04-02
Abstract
No abstract record available.
Inventors
- 👤 David C England
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:14
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C35/00; C07C35/48; C07C35/50; C07C45/56; C07C45/57; C07C45/60; C07C49/00; C07C49/20; C07C49/24; C07C49/242; C07C49/29; C07C49/337; C07C49/385; C07C49/487; C07C49/507; C07C49/76; C07C49/82; C07C49/83
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 4
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 5
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 6
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |