US3232970A
Expired / Lapsed
US
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Terminally branched and terminally monochlorinated perfluorocarboxylic acids
Assignee: Pennwalt Corp
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Filing: 1961-06-02
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Granted: 1966-02-01
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Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 Hauptschein Murray
- 👤 Braid Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:13
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C07; C07C; C07C17/00; C07C17/013; C07C17/04; C07C17/26; C07C17/272; C07C17/278; C07C327/00; C07C45/00; C07C45/004; C07C45/41; C07C51/00; C07C51/02; C07C51/093; C07C51/41; C07C51/412; C07C53/00; C07C53/15; C07C53/19; C07C53/21; C07C69/00; C07C69/62; C07C69/63; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24; C08F18/00; C08F18/20; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M1/00; C10M1/08; C14; C14C; C14C11/00; C14C11/003; C10L1/20; C10L1/205; C10L1/22; C10L1/222; C10L1/228; C10L1/2286; C10L1/30; C10L1/301; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF TERMINALLY BRANCHED CHAIN, TERMINALLY MONOCHLORINATED, BUT OTHERWISE PERFLUORINATED CARBOXYLIC ACIDS HAVING A CHAIN LENGTH OF AT LEAST 6 CARBON ATOMS AND HAVING THE FORMULA:
Claim 2
Dependent Claim
31 words
COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF TERMINALLY BRANCHED CHAIN, TERMINALLY MONOCHLORINATED, BUT OTHERWISE PERFLUORINATED CARBOXYLIC ACIDS HAVING A CHAIN LENGTH OF AT LEAST 6 CARBON ATOMS AND HAVING THE FORMULA:
References Cited (Backward Citations)
US2790815A
Cited
US2992226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |