Patent US2615875A successfully refreshed from Google Patents.
US2615875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinylidene cyanide and isopropenyl esters
Assignee: Goodrich Corp
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Filing: 1950-08-25
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Granted: 1952-10-28
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Expires: 1970-08-25
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Harry
- 👤 Floyd F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:17
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30; C08F22/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A COPOLYMER OF MONOMERIC VINYLIDENE CYANIDE AND AN ISOPROPENYL ESTER OF AN ORGANIC MONOCARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC MONOCARBOXYLIC ACIDS AND AROMATIC MONOCARBOXYLIC ACIDS IN WHICH ANY CARBON TO CARBON UNSATURATION IS PRESENT IN A BENZENE RING, SAID COPOLYMER POSSESSING ESSENTIALLY THE STRUCTURE PS@ -M1-M1(M1-M2)IM1-M2-
Claim 2
Dependent Claim
50 words
A COPOLYMER OF MONOMERIC VINYLIDENE CYANIDE AND AN ISOPROPENYL ESTER OF AN ORGANIC MONOCARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC MONOCARBOXYLIC ACIDS AND AROMATIC MONOCARBOXYLIC ACIDS IN WHICH ANY CARBON TO CARBON UNSATURATION IS PRESENT IN A BENZENE RING, SAID COPOLYMER POSSESSING ESSENTIALLY THE STRUCTURE PS@ -M1-M1(M1-M2)IM1-M2-
References Cited (Backward Citations)
US2466395A
Cited
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 |