US2574546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization products of certain resins containing both hydroxyl and allyl radicals, and method of making same
Assignee: Baker Petrolite LLC
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Filing: 1950-08-03
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Granted: 1951-11-13
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Expires: 1970-08-03
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:02
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0225; C08G8/04; C08G8/08; C08G8/10; C08G8/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
THE PROCESS OF (A) SUBJECTING AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE PHENOL-ALDEHYDE RESIN; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUNCTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND HAVING ONE FUNCTIONAL GROUP REACTIVE TOWARDS SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF PHENOLS OF FUNCTIONALITY GREATER THAN TWO; SAID PHENOL BEING OF THE FORMULA:
Claim 2
Dependent Claim
63 words
THE PROCESS OF (A) SUBJECTING AN OXYALKYLATION-SUSCEPTIBLE, FUSIBLE, ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE PHENOL-ALDEHYDE RESIN; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUNCTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND HAVING ONE FUNCTIONAL GROUP REACTIVE TOWARDS SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF PHENOLS OF FUNCTIONALITY GREATER THAN TWO; SAID PHENOL BEING OF THE FORMULA:
References Cited (Backward Citations)
US2528932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |