US1949330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating and seasoning paper
Assignee: Individual
•
Filing: 1932-03-08
•
Granted: 1934-02-27
•
Expires: 1952-03-08
Abstract
No abstract record available.
Inventors
- 👤 Redd William Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:06
CPC Classifications
A; A41; A41B; A41B15/00; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; D21H19/36; A61; A61L; A61L2103/00; A61L2103/50
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) | 1937-02-26 | 1937-08-28 | 1938-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-26 | 1941-08-28 | 1942-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-26 | 1945-08-28 | 1946-02-27 | $7700.00 | Window Closed / Lapsed |