US3562214A
Expired / Lapsed
US
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Resins based on aromatic cyanic acid esters and polyepoxide compounds
Assignee: Bayer AG
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Filing: 1968-05-08
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Granted: 1971-02-09
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Expires: 1988-05-08
Abstract
Abstract SYNTHEITIC RESINS BASED ON AROMATIC CYANIC ACID ESTERS HAVING AT LEAST TWO CYANIC ACID ESTER GROUPS PER MOLECULR AND POLYEPOXIDES AND PROCESS FOR PRODCUCING THE SAME.
Inventors
- 👤 Rolf Kubens
- 👤 Heinz Schultheis
- 👤 Rudolf Wolf
- 👤 Ernst Grigat
- 👤 Hans-Dieter Schminke
- 👤 Rolf Putter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
B; B01; B01J; B01J20/00; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |