US3711356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite structure of an aromatic polyimide resin and novolak phenolic resin
Assignee: EIDP Inc
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Filing: 1970-07-13
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Granted: 1973-01-16
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Expires: 1990-07-13
Abstract
Abstract NOVOLAK PHENOLIC RESIN FORMS A STRONG BOND WITH COALESCED AROMATIC POLYIMIDE RESIN WHEN COMPACTED AND CURED IN CONTACT THEREWITH.
Inventors
- 👤 A Herman
- 👤 F Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:59
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08K; C08K3/00; C08K3/01
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |