US1603499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrocellulose film and process of making the same
Assignee: DURATEX Corp
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Filing: 1920-10-22
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Granted: 1926-10-19
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Expires: 1940-10-22
Abstract
No abstract record available.
Inventors
- 👤 John A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:00
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; C08J; C08J5/00; C08J5/18; C08J2301/00; C08J2301/08; C08J2301/16; C08J2301/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844; Y10T428/31848; Y10T428/31851; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
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) | 1929-10-18 | 1930-04-19 | 1930-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-18 | 1934-04-19 | 1934-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-18 | 1938-04-19 | 1938-10-19 | $7700.00 | Window Closed / Lapsed |