Patent FR427211A successfully refreshed from Google Patents.
Patent US2940914A successfully refreshed from Google Patents.
US2940914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of carboxylic acids
Assignee: EIDP Inc
•
Filing: 1957-05-03
•
Granted: 1960-06-14
•
Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Fred W Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:43
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN THE SYNTHESIS OF A CARBOXYLIC ACID, THE STEPS COMPRISING (1) INTIMATELY MIXING A FIRST COMPOUND CONTAINING A CARBON-HYDROGEN BOND, SAID CARBON BEING NONCARBONYL, WITH THE SECOND COMPOUND FORMIC ACID AND (2) IRRADIATING THE RESULTING MIXTURE WITH AT LEAST 10**4 RADS OF IONIZING RADIATION HAVING A MINIMUM INTENSITY OF 50 ELECTRON VOLTS AT A TEMPERATURE BETWEEN ABOUT -100* AND +200*C.
Claim 2
Dependent Claim
60 words
IN THE SYNTHESIS OF A CARBOXYLIC ACID, THE STEPS COMPRISING (1) INTIMATELY MIXING A FIRST COMPOUND CONTAINING A CARBON-HYDROGEN BOND, SAID CARBON BEING NONCARBONYL, WITH THE SECOND COMPOUND FORMIC ACID AND (2) IRRADIATING THE RESULTING MIXTURE WITH AT LEAST 10**4 RADS OF IONIZING RADIATION HAVING A MINIMUM INTENSITY OF 50 ELECTRON VOLTS AT A TEMPERATURE BETWEEN ABOUT -100* AND +200*C.
References Cited (Backward Citations)
US2823216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |