US2069424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stacking apparatus
Assignee: Individual
•
Filing: 1934-02-10
•
Granted: 1937-02-02
•
Expires: 1954-02-10
Abstract
No abstract record available.
Inventors
- 👤 Rudolph R Seft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
B; B65; B65H; B65H35/00; B65H35/04; B65H31/00; B65H31/34; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T29/49996; Y10T83/00; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/525; Y10T83/541; Y10T83/544; Y10T83/626; Y10T83/637
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) | 1940-02-02 | 1940-08-03 | 1941-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-02 | 1944-08-03 | 1945-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-02 | 1948-08-03 | 1949-02-02 | $7700.00 | Window Closed / Lapsed |