US3179635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear polymeric amide-modified polyimides and process of making same
Assignee: Westinghouse Electric Corp
•
Filing: 1963-07-08
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Granted: 1965-04-20
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Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Frost
- 👤 George M Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:02
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/306; C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/14; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN AMIDE-MODIFIED POLYIMIDE HAVING THE REPEATING UNIT:
Claim 2
Dependent Claim
7 words
AN AMIDE-MODIFIED POLYIMIDE HAVING THE REPEATING UNIT:
References Cited (Backward Citations)
US2710853A
Cited
US2867609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |