Patent US3831385A successfully refreshed from Google Patents.
Patent US2964485A successfully refreshed from Google Patents.
US2964485A
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Color stabilization of polyvinyl alkyl ether-halogenated solvent systems with a hydrogen acceptor from the group consisting of barium ricinoleate and cadmium alpha-ethylcaproate
Assignee: GAF Chemicals Corp
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Filing: 1956-12-17
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Granted: 1960-12-13
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Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Martinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A COLOR-STABLE SOLUTION OF A POLYVINYL ALKYL ETHER IN A CHLORINATED HYDROCARBON HAVING AT MOST 2 CARBON ATOMS AS SOLVENT, THE STABILIZATION OF THE COLOR BEING EFFECTED BY THE PRESENCE IN SAID SOLUTION OF AN EFFECTIVE AMOUNT OF A HYDROGEN CHLORIDE ACCEPTOR SELECTED FROM TE GROUP CONSISTING OF BARIUM RICINOLEATE AND CADMIUM A-ETHYL CAPROATE.
Claim 2
Dependent Claim
54 words
A COLOR-STABLE SOLUTION OF A POLYVINYL ALKYL ETHER IN A CHLORINATED HYDROCARBON HAVING AT MOST 2 CARBON ATOMS AS SOLVENT, THE STABILIZATION OF THE COLOR BEING EFFECTED BY THE PRESENCE IN SAID SOLUTION OF AN EFFECTIVE AMOUNT OF A HYDROGEN CHLORIDE ACCEPTOR SELECTED FROM TE GROUP CONSISTING OF BARIUM RICINOLEATE AND CADMIUM A-ETHYL CAPROATE.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |