US3677992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide-imide compositions containing coatability aids
Assignee: Standard Oil Co
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Filing: 1971-04-07
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Granted: 1972-07-18
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Expires: 1991-04-07
Abstract
Abstract THE COATABILITY OF AN AMIDE-IMIDE POLYMER COATING ON A MAGNET WIRE IS SUBSTANTIALLY IMPROVED BY THE ADDITION OF AROMATIC KETONES HAVING A BOILING RANGE OF ABOUT 200*C. TO 310*C. OR MONOHYDRIC ALCOHOLS BOILING IN THE RANGE OF ABOUT 75*C. TO 150*C. OR UTILIZING A MIXTURE OF BOTH.
Inventors
- 👤 Edwin F Morello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:31
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/306; C; C09; C09D; C09D179/00; C09D179/04; C09D179/08
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |