Patent US2913430A successfully refreshed from Google Patents.
US2913430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride-vinyl acetate copolymer dissolved in solvent mixture containing aromatic hydrocarbon and lactone component
Assignee: American Marietta Co
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Filing: 1957-04-09
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Granted: 1959-11-17
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Expires: 1977-04-09
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Roeser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:13
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A RESIN COMPOSITION COMPRISING A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE CONTAINING SIBSTANTIALLY 87% BY WEIGHT OF VINYL CHLORIDE, DISSOLVED IN A SOLVENT COMPOSITION COMPRISING AS THE ESSENTIAL COMPONENTS THEREOF, GAMMA-BUTYROLACTON AND LIQUID AROMATIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF BENZENE, ALKYL BENZENES AND MIXTURES THEREOF, THE SAID LACTONE BEING PRESENT IN AN AMOUNT OF AT LEAST ABOUT 7% BY WEIGHT UP TO ABOUT 50% BY WEIGHT BASED ON THE COMBINED WEIGHT OF SAID LACTONE AND SAID AROMATIC SOLVENT.
Claim 2
Dependent Claim
81 words
A RESIN COMPOSITION COMPRISING A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE CONTAINING SIBSTANTIALLY 87% BY WEIGHT OF VINYL CHLORIDE, DISSOLVED IN A SOLVENT COMPOSITION COMPRISING AS THE ESSENTIAL COMPONENTS THEREOF, GAMMA-BUTYROLACTON AND LIQUID AROMATIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF BENZENE, ALKYL BENZENES AND MIXTURES THEREOF, THE SAID LACTONE BEING PRESENT IN AN AMOUNT OF AT LEAST ABOUT 7% BY WEIGHT UP TO ABOUT 50% BY WEIGHT BASED ON THE COMBINED WEIGHT OF SAID LACTONE AND SAID AROMATIC SOLVENT.
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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |