US2790787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric maleimide derivatives
Assignee: Uniroyal Inc
•
Filing: 1953-05-25
•
Granted: 1957-04-30
•
Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Pliny O Tawney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/36; C08F28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A RESINOUS POLYMERIZATE, THE MONOMERIC CONSTITUENTS OF WHICH ARE COMPOSED OF AT LEAST 5% BY WEIGHT OF A MONOMERIC CHEMICAL HAVING THE FORMULA
Claim 2
Dependent Claim
23 words
A RESINOUS POLYMERIZATE, THE MONOMERIC CONSTITUENTS OF WHICH ARE COMPOSED OF AT LEAST 5% BY WEIGHT OF A MONOMERIC CHEMICAL HAVING THE 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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |