US2557968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decomposition of organic hydroperoxides
Assignee: Hercules Powder Co
•
Filing: 1948-11-24
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Granted: 1951-06-26
•
Expires: 1968-11-24
Abstract
No abstract record available.
Inventors
- 👤 George E Hulse
- 👤 Edwin J Vandenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C45/00; C07C45/51; C07C45/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS OF PRODUCING AROMATIC KETONES AND TERTIARY ALCOHOLS CONTAINING AN AROMATIC NUCLEUS WHICH COMPRISES REACTING AN A,A-DIALKYLARYLMETHYL HYDROPEROXIDE WITH THE REDUCED FORM OF AN ELECTROMOTIVE COUPLE HAVING A STANDARD OXIDATION-REDUCTION POTENTIAL NOT LESS THAN ABOUT -1.0 VOLT.
Claim 2
Dependent Claim
38 words
THE PROCESS OF PRODUCING AROMATIC KETONES AND TERTIARY ALCOHOLS CONTAINING AN AROMATIC NUCLEUS WHICH COMPRISES REACTING AN A,A-DIALKYLARYLMETHYL HYDROPEROXIDE WITH THE REDUCED FORM OF AN ELECTROMOTIVE COUPLE HAVING A STANDARD OXIDATION-REDUCTION POTENTIAL NOT LESS THAN ABOUT -1.0 VOLT.
References Cited (Backward Citations)
US1813606A
Cited
US2462103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |