Patent US2940913A successfully refreshed from Google Patents.
US2940913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing carboxylic acids by irradiation
Assignee: EIDP Inc
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Filing: 1956-10-01
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Granted: 1960-06-14
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Blaine C Mckusick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:29
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/15; B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; B01J19/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE PROCESS WHICH COMPRISES IRRADIATING AN INTIMATE MIXTURE OF CARBON DIOXIDE AND AN ORGANIC COMPOUND POSSESSING A CARBON ATOM BONDED TO HYDROGEN AND TO THREE OTHER ATOMS WITH AT LEAST 104 RADS OF ELECTRONS HAVING AN ENERGY OF AT LEAST 50 ELECTRON VOLTS AND SUBSEQUENTLY SEPARATING AT LEAST ONE CARBOXYLIC ACID FROM THE IRRADIATED MIXTURE.
Claim 2
Dependent Claim
55 words
THE PROCESS WHICH COMPRISES IRRADIATING AN INTIMATE MIXTURE OF CARBON DIOXIDE AND AN ORGANIC COMPOUND POSSESSING A CARBON ATOM BONDED TO HYDROGEN AND TO THREE OTHER ATOMS WITH AT LEAST 104 RADS OF ELECTRONS HAVING AN ENERGY OF AT LEAST 50 ELECTRON VOLTS AND SUBSEQUENTLY SEPARATING AT LEAST ONE CARBOXYLIC ACID FROM THE IRRADIATED MIXTURE.
References Cited (Backward Citations)
US1338352A
Cited
GB309002A
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 |