US3738967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamides from bis-maleimides and h2s
Assignee: General Electric Co
•
Filing: 1971-07-16
•
Granted: 1973-06-12
•
Expires: 1991-07-16
Abstract
Abstract POLYIMIDE COMPOSITIONS ARE OBTAINED BY THE REACTION OF A BIS-IMIDE AND HYDROGEN SULFIDE. THE RESULTING POLYMERIC COMPOSITIONS HAVE PHYSICAL PROPERTIES WHICH MAKE THEM SUITABLE IN COATING, INSULATING, AND MOLDING APPLICATIONS.
Inventors
- 👤 J Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:16
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G73/00; C08G73/06; C08G73/10; C08G73/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |