US2333914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isocyanate treatment of polyamides
Assignee: EIDP Inc
•
Filing: 1940-07-02
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Granted: 1943-11-09
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Expires: 1960-07-02
Abstract
No abstract record available.
Inventors
- 👤 Gerard J Berchet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:25
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/60; C08G18/603; C08G69/00; C08G69/48; D; D01; D01F; D01F6/00; D01F6/58; D01F6/60; D06; D06M; D06M13/00; D06M13/322; D06M13/395; D06M13/402; D06M13/425; C08J2377/00
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) | 1946-11-08 | 1947-05-10 | 1947-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-08 | 1951-05-10 | 1951-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-08 | 1955-05-10 | 1955-11-09 | $7700.00 | Window Closed / Lapsed |