Patent DE367230C successfully refreshed from Google Patents.
Patent US2524111A successfully refreshed from Google Patents.
US2524111A
Expired / Lapsed
US
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Resinous composition and method of making same
Assignee: Stein Hall and Co Inc
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Filing: 1945-09-28
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Granted: 1950-10-03
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Expires: 1965-09-28
Abstract
No abstract record available.
Inventors
- 👤 Piana Fred G La
- 👤 George N Houth
- 👤 Raymond W Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:23
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/10; C08G63/00; C08G63/02; C08G63/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN AQUEOUS SOLUTION OF A RESINOUS COMPOSITION COMPRISING A REACTION PRODUCT PREPARED BY REACTING, AS THE SOLE REACTANTS, (1) FROM 4 TO 40 PARTS BY WEIGHT OF AN ALPHA-HYDROXY-MONOCARBOXYLIC ACID HAVING THE GENERAL FORMULA RCOOH, WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL AND PHENYL RADICALS SUBSTITUTED IN THE ALPHA-POSITION BY A HYDROXY GROUP, (2) FROM 10 TO 30 PARTS BY WEIGHT OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, GUANIDINE, CARBAMYL UREA AND BIURET, (3) FROM 35 TO 80 PARTS BY WEIGHT OF AN ALDEHYDE COMPONENT, AND (4) FROM 0.3 TO 25 PARTS BY WEIGHT OF AN ETHANOL HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
110 words
AN AQUEOUS SOLUTION OF A RESINOUS COMPOSITION COMPRISING A REACTION PRODUCT PREPARED BY REACTING, AS THE SOLE REACTANTS, (1) FROM 4 TO 40 PARTS BY WEIGHT OF AN ALPHA-HYDROXY-MONOCARBOXYLIC ACID HAVING THE GENERAL FORMULA RCOOH, WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF LOWER ALKYL AND PHENYL RADICALS SUBSTITUTED IN THE ALPHA-POSITION BY A HYDROXY GROUP, (2) FROM 10 TO 30 PARTS BY WEIGHT OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, GUANIDINE, CARBAMYL UREA AND BIURET, (3) FROM 35 TO 80 PARTS BY WEIGHT OF AN ALDEHYDE COMPONENT, AND (4) FROM 0.3 TO 25 PARTS BY WEIGHT OF AN ETHANOL HAVING THE GENERAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |