Patent US2615878A successfully refreshed from Google Patents.
US2615878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinylidene cyanide with 1,2-dihalo ethylenes
Assignee: Goodrich Corp
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Filing: 1950-10-27
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Granted: 1952-10-28
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Folt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:06
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30; C08F22/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A TWO COMPONENT COPOLYMER OF VINYLIDENE CYANIDE WITH A 1,2-DIHALO ETHYLENE, THE VINYLIDENE CYANIDE UNITS IN SAID COPOLYMER BEING DERIVED FROM MONOMERIC VINYLIDENE CYANIDE WHICH IS 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.
Claim 2
Dependent Claim
73 words
A TWO COMPONENT COPOLYMER OF VINYLIDENE CYANIDE WITH A 1,2-DIHALO ETHYLENE, THE VINYLIDENE CYANIDE UNITS IN SAID COPOLYMER BEING DERIVED FROM MONOMERIC VINYLIDENE CYANIDE WHICH IS 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.
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |