US2371710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient materials
Assignee: Celanese Corp
•
Filing: 1941-11-12
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Granted: 1945-03-20
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Expires: 1961-11-12
Abstract
No abstract record available.
Inventors
- 👤 Schneider George
- 👤 Mervin E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:00
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1025; C09K3/1028; C09K2003/1034; C09K2003/1046; C09K2200/00; C09K2200/02; C09K2200/0217; C09K2200/0221; C09K2200/0226; C09K2200/04; C09K2200/0429; C09K2200/0452; C09K2200/06; C09K2200/0692; C09K2200/0697; Y; Y10; Y10S; Y10S428/00; Y10S428/909; Y10T; Y10T428/00; Y10T428/21; Y10T428/215; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
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) | 1948-03-19 | 1948-09-18 | 1949-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-19 | 1952-09-18 | 1953-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-19 | 1956-09-18 | 1957-03-20 | $7700.00 | Window Closed / Lapsed |