US2067950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial material and method of preparing the same
Assignee: Celanese Corp
•
Filing: 1933-07-03
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Granted: 1937-01-19
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Expires: 1953-07-03
Abstract
No abstract record available.
Inventors
- 👤 Schneider George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:56
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/144; D06M13/148; D06M13/02; D06M13/03; D06M7/00; C; C10; C10M; C10M2203/00; C10M2203/06; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/025; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/40; C10M2207/402; C10M2207/404; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2040/00; C10N2040/46; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965
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) | 1940-01-19 | 1940-07-20 | 1941-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-19 | 1944-07-20 | 1945-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-19 | 1948-07-20 | 1949-01-19 | $7700.00 | Window Closed / Lapsed |