US1642274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-operating device
Assignee: Individual
•
Filing: 1923-05-21
•
Granted: 1927-09-13
•
Expires: 1943-05-21
Abstract
No abstract record available.
Inventors
- 👤 Stendahl Louis
- 👤 Hanson Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
F; F16; F16H; F16H3/00; F16H2712/00; F16H2712/06; F16H2712/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/1812; Y10T74/18416; Y10T74/18424; Y10T74/18448
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) | 1930-09-12 | 1931-03-14 | 1931-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-12 | 1935-03-14 | 1935-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-12 | 1939-03-14 | 1939-09-13 | $7700.00 | Window Closed / Lapsed |