US2615872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinylidene cyanide with halogenated butadiene-1,3 hydrocarbons
Assignee: Goodrich Corp
•
Filing: 1950-04-29
•
Granted: 1952-10-28
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Expires: 1970-04-29
Abstract
No abstract record available.
Inventors
- 👤 Seward J Averill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30; C08F22/34; C08F236/00; C08F236/02; C08F236/04; C08F236/14; C08F236/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A HARD, RESINOUS, NON-RUBBERY COPOLYMER OF VINYLIDENE CYANIDE AND A HALOGENATED BUTADIENE1,3 HYDROCARBON SAID COPOLYMER POSSESSING ESSENTIALLY THE STRUCTURE
Claim 2
Dependent Claim
19 words
A HARD, RESINOUS, NON-RUBBERY COPOLYMER OF VINYLIDENE CYANIDE AND A HALOGENATED BUTADIENE1,3 HYDROCARBON SAID COPOLYMER POSSESSING ESSENTIALLY THE STRUCTURE
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 |