US2343174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment for polyamides
Assignee: EIDP Inc
•
Filing: 1940-08-02
•
Granted: 1944-02-29
•
Expires: 1960-08-02
Abstract
No abstract record available.
Inventors
- 👤 Austin G Edison
- 👤 Winfield W Heckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:01
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/14; C08J2377/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
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) | 1947-02-28 | 1947-08-30 | 1948-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-28 | 1951-08-30 | 1952-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-28 | 1955-08-30 | 1956-02-29 | $7700.00 | Window Closed / Lapsed |