US2030983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of films and foils of organic cellulose esters
Assignee: GAF Chemicals Corp
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Filing: 1932-10-03
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Granted: 1936-02-18
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Expires: 1952-10-03
Abstract
No abstract record available.
Inventors
- 👤 Hagedorn Max
- 👤 Moller Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; 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) | 1939-02-17 | 1939-08-19 | 1940-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-17 | 1943-08-19 | 1944-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-17 | 1947-08-19 | 1948-02-18 | $7700.00 | Window Closed / Lapsed |