US2625534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resins and process for producing same from reaction products of hydroxy aromatic aldehydes and mercaptans
Assignee: Universal Oil Products Co
•
Filing: 1950-06-13
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Granted: 1953-01-13
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Expires: 1970-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR PREPARING A RESIN WHICH COMPRISES HEATING THE REACTION PRODUCT FORMED BY REACTION A HYDROXY AROMATIC ALDEHYDE HAVING A HYDROXY GROUP ATTACHED TO A RING CARBON ATOM AND ETHYL MERCAPTAN IN THE PRESENCE OF AN ACIDIC CATALYST, SAID HEATING BEING AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO RESINIFY SAID REACTION PRODUCT.
Claim 2
Dependent Claim
55 words
A PROCESS FOR PREPARING A RESIN WHICH COMPRISES HEATING THE REACTION PRODUCT FORMED BY REACTION A HYDROXY AROMATIC ALDEHYDE HAVING A HYDROXY GROUP ATTACHED TO A RING CARBON ATOM AND ETHYL MERCAPTAN IN THE PRESENCE OF AN ACIDIC CATALYST, SAID HEATING BEING AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO RESINIFY SAID REACTION PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
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 |