US2060733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating cellulose and derivatives thereof
Assignee: EIDP Inc
•
Filing: 1934-09-04
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Granted: 1936-11-10
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Expires: 1954-09-04
Abstract
No abstract record available.
Inventors
- 👤 Hunt James Karr
- 👤 Latham George Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:06
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/425; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2971; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/2861; Y10T442/2869
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) | 1939-11-10 | 1940-05-11 | 1940-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-10 | 1944-05-11 | 1944-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-10 | 1948-05-11 | 1948-11-10 | $7700.00 | Window Closed / Lapsed |