US3803101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionic polymerization of lactam
Assignee: Mitsuboshi Belting Ltd
•
Filing: 1972-06-30
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Granted: 1974-04-09
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Expires: 1992-06-30
Abstract
Abstract AN ANIONIC POLYMERIZATION METHOD OF A LACTAM BY ANIONICALLY POLYMERIZING AN ANHYDROUS OR SUBSTANTIALLY ANHYDROUS LACTAM WITH AN ANIONIC POLYMERIZATION CATALYST IN THE PRESENCE OF TRIALLYLISOCYANURATE AS A PROMOTER IS DISCLOSED.
Inventors
- 👤 T Matsuo
- 👤 S Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:49
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18; C08G69/20
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |