US3435003A
Expired / Lapsed
US
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Cross-linked thermally reversible polymers produced from condensation polymers with pendant furan groups cross-linked with maleimides
Assignee: EIDP Inc
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Filing: 1966-06-01
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Granted: 1969-03-25
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Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 James M Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:50
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08G73/121; C08G73/122; C08F; C08F291/00; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/67; C08G18/671; C08G18/674; C08G18/675; C08G18/6765; C08G18/83; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G69/00; C08G69/48
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |