US3485805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-alkyl substituted polyamide elastomers
Assignee: British Nylon Spinners Ltd
•
Filing: 1965-11-10
•
Granted: 1969-12-23
•
Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 Clifton Douglas Cowell
- 👤 Geoffrey James Tyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:35
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2378977A
Cited
US2388035A
Cited
US2462430A
Cited
US2430859A
Cited
US2430866A
Cited
FR1062118A
Cited
US2835653A
Cited
US2765294A
Cited
US2892817A
Cited
US3027356A
Cited
US3036047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |