Patent US3137713A successfully refreshed from Google Patents.
US3137713A
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Fluorine-containing alpha-sulfocarboxylic esters
Assignee: Baker Petrolite LLC
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Filing: 1962-05-03
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Granted: 1964-06-16
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Expires: 1982-05-03
Abstract
No abstract record available.
Inventors
- 👤 Shen Kwan-Ting
- 👤 Patrick M Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:57
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2431; C10L1/2437; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/17; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A FLUORINE-CONTAINING ESTER OF THE FORMULA
Claim 2
Dependent Claim
6 words
A FLUORINE-CONTAINING ESTER 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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |