Patent CH553573A successfully refreshed from Google Patents.
Patent US2561023A successfully refreshed from Google Patents.
US2561023A
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Rotary pump and motor hydraulic transmission with automatic speed control means
Assignee: Northern Pump Co
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Filing: 1940-08-05
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Granted: 1951-07-17
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Expires: 1960-08-05
Abstract
No abstract record available.
Inventors
- 👤 Garold A Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:31
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47; F15; F15B; F15B9/00; F15B9/14; F41; F41A; F41A27/00; F41A27/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |