US2564237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed rotary pump and motor hydraulic transmission
Assignee: GEN ENGINEERING Co CANADA
•
Filing: 1945-06-11
•
Granted: 1951-08-14
•
Expires: 1965-06-11
Abstract
No abstract record available.
Inventors
- 👤 Robert S Segsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:57
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/26; F16H39/30; F16H39/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB222647A
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US1840869A
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DE519686C
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US1762532A
Cited
GB426861A
Cited
US2255963A
Cited
US2211402A
Cited
US2309148A
Cited
US2384218A
Cited
US2492720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |