US3102135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of benzoic acids and 1-(carboxyphenyl)-indane carboxylic acids
Assignee: Wyeth Holdings LLC
•
Filing: 1961-10-10
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Granted: 1963-08-27
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 John C Petropoulos
- 👤 Richard K Madison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; C08G63/185; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/255; C07C51/265; C07C51/347; C07C51/353; C07C51/377; C08G63/123; C08G63/127; C08G63/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A METHOD OF PRODUCING A 1-(CARBOXYPHENYL)-INDANOIC ACID WHICH COMPRISES PASSING AN OXYGEN CONTAINING GAS AT A TEMPERATURE OF ABOUT 40*C. TO 180*C. THROUGH A MIXTURE CONTAINING A POLYVALENT METAL OXIDATION CATALYST AND A COMPOUND OF THE FORMULA:
Claim 2
Independent Claim
37 words
A METHOD OF PRODUCING A 1-(CARBOXYPHENYL)-INDANOIC ACID WHICH COMPRISES PASSING AN OXYGEN CONTAINING GAS AT A TEMPERATURE OF ABOUT 40*C. TO 180*C. THROUGH A MIXTURE CONTAINING A POLYVALENT METAL OXIDATION CATALYST AND A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
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US2548435A
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US2526897A
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US2519577A
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US2632774A
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US2629751A
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US2636899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |