US2687404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy-containing copolymers of 4-vinylcyclohexene monoepoxide and a polymerizable ethylenically unsaturated compound
Assignee: EIDP Inc
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Filing: 1951-07-05
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Granted: 1954-08-24
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Expires: 1971-07-05
Abstract
No abstract record available.
Inventors
- 👤 James A Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:12
CPC Classifications
C; C08; C08F; C08F246/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
AN EPOXY-CONTAINING COPOLYMER OF 4-VINYLCYCLOHEXENE MONOEPOXIDE WITH VINYL ACETATE, SAID COPOLYMER CONTAINING FORM 3 TO 50% BY WEIGHT OF SAID 4-VINYLCYCLOHEXENE MONOEPXIDE POLYMERIZED THROUGH THE VINYL GROUP AND RETAINING THE EPOXIDE GROUP INTACT.
References Cited (Backward Citations)
US2152003A
Cited
US2160943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |