US3493545A
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Polymers having n-cyanoimine,n-cyanoaziridine and cyanamide substituents,and their preparation by reaction of cyanogen azide with c=c or c-h bonds in corresponding parent polymers
Assignee: EIDP Inc
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Filing: 1969-01-13
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Granted: 1970-02-03
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Expires: 1989-01-13
Abstract
No abstract record available.
Inventors
- 👤 Frank Dennis Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:38
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07C; C07C261/00; C07C261/02; C07C273/00; C07C273/18; C07C273/1809; C07D203/16; C07D203/20; C07D203/26; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C07D307/22; C07D307/24; C07D319/00; C07D319/10; C07D319/12; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; C07F7/0814; C08; C08F; C08F8/00; C08F8/30; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C08G63/91; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08J; C08J7/00; C08J7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3410658A
Cited
US3268512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |