Patent US3843674A successfully refreshed from Google Patents.
US3843674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diglycidylbenzimidazolones
Assignee: Novartis Corp
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Filing: 1972-12-29
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Granted: 1974-10-22
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Expires: 1992-12-29
Abstract
Abstract Substituted and/or fused diglycidylbenzimidazolones which can be used, by curing with amines or anhydrides, for the manufacture of carting resins, electrical resins, sintering powders and compression moulding compositions.
Inventors
- 👤 D Porret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:12
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A DIGLYCIDYLBENZIMIDAZOLONE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A DIGLYCIDYLBENZIMIDAZOLONE COMPOUND OF THE FORMULA
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |