Patent US2891985A successfully refreshed from Google Patents.
US2891985A
Expired / Lapsed
US
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Monomers for flame resistant resinous copolymers
Assignee: Uniroyal Inc
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Filing: 1956-11-16
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Granted: 1959-06-23
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Expires: 1976-11-16
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hurdis
- 👤 John F Petras
- 👤 Jr Hendrik Romeyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:23
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/02; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C07F9/16; C07F9/165; C07F9/1651
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERL FORMULA
Claim 2
Dependent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERL FORMULA
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) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |