US3790515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pourable,storable polymerizable lactam-catalyst-activator mixtures
Assignee: Bayer AG
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Filing: 1972-03-08
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Granted: 1974-02-05
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Expires: 1992-03-08
Abstract
Abstract A POURABLE, STORABLE, POLYMERIZABLE LACTAM-CATALYST-ACTIVATOR MIXTURE COMPRISING AT LEAST ONE LACTAM HAVING MORE THAN 5 RING MEMBERS, AT LEAST ONE ALKALINE CATALYST AND AT LEAST ONE ACTIVATOR BEING EMBEDDED IN AN ORGANIC MATERIAL.
Inventors
- 👤 H Rosenbaum
- 👤 H Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:32
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |