US3036124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carboxylic acids
Assignee: Hercules Powder Co
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Filing: 1959-08-24
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Granted: 1962-05-22
•
Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Andrew John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:41
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN THE MANUFACTURE OF CARBOXYLIC ACIDS WHEREIN AN OLEFINIC HYDROCARBON IS REACTED WITH CARBON MONOXIDE UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND THE REACTION PRODUCT IS DILUTED WITH WATER TO FORM A CARBOXYLIC ACID, THE IMPROVEMENT OF CONTACTING THE OLEFINIC HYDROCARBON AND CARBON MONOXIDE IN THE PRESENCE OF SOLID PHOSPHORIC ACID AS A CATALYST, SAID SOLID PHOSPHORIC ACID BEING A CALCINED COMPOSITE OF A PHOSPHORIC ACID AND A SILICEOUS ADSORBENT.
Claim 2
Dependent Claim
68 words
IN THE MANUFACTURE OF CARBOXYLIC ACIDS WHEREIN AN OLEFINIC HYDROCARBON IS REACTED WITH CARBON MONOXIDE UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND THE REACTION PRODUCT IS DILUTED WITH WATER TO FORM A CARBOXYLIC ACID, THE IMPROVEMENT OF CONTACTING THE OLEFINIC HYDROCARBON AND CARBON MONOXIDE IN THE PRESENCE OF SOLID PHOSPHORIC ACID AS A CATALYST, SAID SOLID PHOSPHORIC ACID BEING A CALCINED COMPOSITE OF A PHOSPHORIC ACID AND A SILICEOUS ADSORBENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |