US2130948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic fiber
Assignee: EIDP Inc
•
Filing: 1937-04-09
•
Granted: 1938-09-20
•
Expires: 1957-04-09
Abstract
No abstract record available.
Inventors
- 👤 Carothers Wallace Hume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:33
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/60; C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/28; D01D; D01D5/00; D01D5/06; Y; Y10; Y10S; Y10S8/00; Y10S8/21; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/2973; Y10T428/2976; Y10T428/2978
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) | 1941-09-19 | 1942-03-21 | 1942-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-19 | 1946-03-21 | 1946-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-19 | 1950-03-21 | 1950-09-20 | $7700.00 | Window Closed / Lapsed |