Patent US3738969A successfully refreshed from Google Patents.
US3738969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyimides
Assignee: General Electric Co
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Filing: 1971-04-30
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Granted: 1973-06-12
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Expires: 1991-04-30
Abstract
Abstract IMPROVED PRODUCTS ARE OBTAINED FROM THE POLYMERIZATION OF MIXTURES OF MONO-IMIDES AND BIS-IMIDES. THE COMPOSITIONS THUS OBTAINED HAVE IMPROVED PHYSICAL PROPERTIES AND HEAT RESISTANCE MAKING THEM ESPECIALLY SUITABLE IN VARIOUS COATING, INSULATING AND MOLDING APPLICATIONS.
Inventors
- 👤 F Holub
- 👤 D Pauze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:31
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08G73/121; C08G73/122
Claims Analysis
Total Claims: 0
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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 |