Patent US2590800A successfully refreshed from Google Patents.
US2590800A
Expired / Lapsed
US
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Variable-speed transmission
Assignee: General Electric Co
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Filing: 1950-01-17
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Granted: 1952-03-25
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Expires: 1970-01-17
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:06
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/48; F16H15/50; F16H15/503
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1380006A
Cited
US1585140A
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US1800388A
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US1691625A
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US1718846A
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US2005949A
Cited
GB474289A
Cited
US2349981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |