US1641322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of filmlike bands from cellulose solutions and similar initial materials
Assignee: Individual
•
Filing: 1926-01-15
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Granted: 1927-09-06
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Expires: 1946-01-15
Abstract
No abstract record available.
Inventors
- 👤 Czapek Emil
- 👤 Weingand Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:32
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/22; C08L1/24; B; B29; B29C; B29C41/00; B29C41/24; B29C41/28; C08J; C08J5/00; C08J5/18; B29K; B29K2201/00; B29K2201/08; C08J2301/00; C08J2301/08; C08J2301/22; C08J2301/24; Y; Y10; Y10S; Y10S264/00; Y10S264/45
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) | 1930-09-05 | 1931-03-07 | 1931-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-05 | 1935-03-07 | 1935-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-05 | 1939-03-07 | 1939-09-06 | $7700.00 | Window Closed / Lapsed |