US2774255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic variable speed transmission
Assignee: Individual
•
Filing: 1954-01-11
•
Granted: 1956-12-18
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Frank A Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:32
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/34; F16H39/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191109519A
Cited
GB191313488A
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US1235132A
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US1294121A
Cited
US1987698A
Cited
US1926692A
Cited
US2125513A
Cited
US2171146A
Cited
US2190122A
Cited
US2370526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |