US2625570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of polyhydric phenols and ethers of polyhydric phenols
Assignee: Universal Oil Products Co
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Filing: 1950-08-26
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Granted: 1953-01-13
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Expires: 1970-08-26
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Jerome A Vesely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:02
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/01; C07C37/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR CONVERTING A MEMBER OF THE GROUP CONSISTING OF A POLYHYDRIC PHENOL AND AN ETHER OF A POLYHYDRIC PHENOL INTO A COMPOUND CONTAINING LESS OXYGEN WHICH COMPRISES REACTING A CHARGING STOCK SELECTED FROM THE MEMBERS OF THE GROUP CONSISTING OF A POLY-HYDRIC PHENOL AND AN ETHER OF A POLYHYDRIC PHENOL WITH A HYDROGEN DONOR SELECTED FROM THE GROUP CONSISTING OF WATER, AN ALCOHOL AND A NAPHTHENIC HYDROCARBON IN THE PRESENCE OF AN ACID-ACTING, HY DROGEN-TRANSFER CATALYST AND AT HYDROGEN TRANSFER CONDITIONS TO FORM A PHENOLIC COMPOUND CONTAINING LESS OXYGEN THAN SAID CHARGING STOCK, AND RECOVERING SAID PHENOLIC COMPOUND.
Claim 2
Dependent Claim
100 words
A PROCESS FOR CONVERTING A MEMBER OF THE GROUP CONSISTING OF A POLYHYDRIC PHENOL AND AN ETHER OF A POLYHYDRIC PHENOL INTO A COMPOUND CONTAINING LESS OXYGEN WHICH COMPRISES REACTING A CHARGING STOCK SELECTED FROM THE MEMBERS OF THE GROUP CONSISTING OF A POLY-HYDRIC PHENOL AND AN ETHER OF A POLYHYDRIC PHENOL WITH A HYDROGEN DONOR SELECTED FROM THE GROUP CONSISTING OF WATER, AN ALCOHOL AND A NAPHTHENIC HYDROCARBON IN THE PRESENCE OF AN ACID-ACTING, HY DROGEN-TRANSFER CATALYST AND AT HYDROGEN TRANSFER CONDITIONS TO FORM A PHENOLIC COMPOUND CONTAINING LESS OXYGEN THAN SAID CHARGING STOCK, AND RECOVERING SAID PHENOLIC COMPOUND.
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) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |