Patent US1771700A successfully refreshed from Google Patents.
Patent US2650911A successfully refreshed from Google Patents.
US2650911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinylidene cyanide with alkenyl esters of monobasic acids
Assignee: Goodrich Corp
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Filing: 1950-02-25
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Granted: 1953-09-01
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Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Harry
- 👤 Floyd F Miller
- 👤 Vernon L Folt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:40
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30; C08F22/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A COPOLYMER OF VINYLIDENE CYANIDE AND AN ESTER OF A MONO-BASIC ACID WITH AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF ALLYL AND METALLYL ALCOHOLS, THE VINYLIDENE CYANIDE IN SAID COPOLYMER BEING DERIVED FROM MONOMERIC VINYLIDENE CYANIDE WHICH IS A LIQUID AT ROOM TEMPERATURE AND A CRYSTALLINE SOLID AT 0* C., HAVING A MELTING POINT WHEN IN PUREST FORM OF SUBSTANTIALLY 9.0* C. TO 9.7* C. AND BEING CHARACTERIZED CHEMICALLY BY THE ABILITY TO UNDERGO ON CONTACT WITH WATER AT ROOM TEMPERATURE AN INSTANTANEOUS HOMOPOLYMERIZATION REACTION TO GIVE A SOLID, WATER-INSOLUBLE RESIN, SAID COPOLYMER RESULTING FROM THE POLYMERIZATION OF A MIXTURE CONSISTING OF VINYLIDENE CYANIDE AND SAID ESTER, SAID MIXTURE CONTAINING FROM 0.1 TO 99 MOLE PER CENT OF VINYLIDENE CYANIDE.
Claim 2
Dependent Claim
121 words
A COPOLYMER OF VINYLIDENE CYANIDE AND AN ESTER OF A MONO-BASIC ACID WITH AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF ALLYL AND METALLYL ALCOHOLS, THE VINYLIDENE CYANIDE IN SAID COPOLYMER BEING DERIVED FROM MONOMERIC VINYLIDENE CYANIDE WHICH IS A LIQUID AT ROOM TEMPERATURE AND A CRYSTALLINE SOLID AT 0* C., HAVING A MELTING POINT WHEN IN PUREST FORM OF SUBSTANTIALLY 9.0* C. TO 9.7* C. AND BEING CHARACTERIZED CHEMICALLY BY THE ABILITY TO UNDERGO ON CONTACT WITH WATER AT ROOM TEMPERATURE AN INSTANTANEOUS HOMOPOLYMERIZATION REACTION TO GIVE A SOLID, WATER-INSOLUBLE RESIN, SAID COPOLYMER RESULTING FROM THE POLYMERIZATION OF A MIXTURE CONSISTING OF VINYLIDENE CYANIDE AND SAID ESTER, SAID MIXTURE CONTAINING FROM 0.1 TO 99 MOLE PER CENT OF VINYLIDENE CYANIDE.
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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |