US3454689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of shaped articles from lactam polymers
Assignee: EIDP Inc
•
Filing: 1964-07-28
•
Granted: 1969-07-08
•
Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 William E Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:07
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18; C08J; C08J5/00; C08J2377/00; C08J2377/02; Y; Y10; Y10S; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2525972A
Cited
US3236789A
Cited
US3300422A
Cited
US3214415A
Cited
US3207713A
Cited
US3274132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |