US3013081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of ketones
Assignee: Celanese Corp
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Filing: 1958-04-03
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Granted: 1961-12-12
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Expires: 1978-04-03
Abstract
No abstract record available.
Inventors
- 👤 Henry K Dice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:55
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PREPARING AN EASILY PURIFABLE SATURATED KETONE WHICH COMPRISES CONTACTING WITH PERACETIC ACID A SATURATED KETONE CONTAMINATED BY A SMALL AMOUNT OF THE CORRESPONDING UNSATURATED KETONE, TO REACT SAID UNSATURATED KETONE WITH SAID PERACETIC ACID TO FORM A REACTION PRODUCT, BOTH OF SAID KETONES BEING ENTIRELY HYDROCARBON EXCEPT FOR THE OXYGEN OF THEIR CARBONYL GROUP, THE CARBON-TO-CARBON BONDS OF SAID SATURATED KETONE CONSISTING OF SINGLE BONDS AND THE CARBON-TO-CARBON BONDS OF SAID UNSATURATED KETONE CONSISTING OF SINGLE BONDS AND AN ETHYLENIC DOUBLE BOND.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PREPARING AN EASILY PURIFABLE SATURATED KETONE WHICH COMPRISES CONTACTING WITH PERACETIC ACID A SATURATED KETONE CONTAMINATED BY A SMALL AMOUNT OF THE CORRESPONDING UNSATURATED KETONE, TO REACT SAID UNSATURATED KETONE WITH SAID PERACETIC ACID TO FORM A REACTION PRODUCT, BOTH OF SAID KETONES BEING ENTIRELY HYDROCARBON EXCEPT FOR THE OXYGEN OF THEIR CARBONYL GROUP, THE CARBON-TO-CARBON BONDS OF SAID SATURATED KETONE CONSISTING OF SINGLE BONDS AND THE CARBON-TO-CARBON BONDS OF SAID UNSATURATED KETONE CONSISTING OF SINGLE BONDS AND AN ETHYLENIC DOUBLE BOND.
References Cited (Backward Citations)
US2355140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |