US1854604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment of films
Assignee: Firm Kern & Cie A G
•
Filing: 1929-04-19
•
Granted: 1932-04-19
•
Expires: 1949-04-19
Abstract
No abstract record available.
Inventors
- 👤 Steinmann Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/13; G03D3/14; G03D3/135
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) | 1935-04-19 | 1935-10-19 | 1936-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-04-19 | 1939-10-19 | 1940-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-04-19 | 1943-10-19 | 1944-04-19 | $7700.00 | Window Closed / Lapsed |