US2850910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed power transmission mechanisms
Assignee: Excelermatic Inc
•
Filing: 1954-03-12
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Granted: 1958-09-09
•
Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Charles E Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:39
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/664; F16H61/6647
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1856249A
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US1904046A
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US2057136A
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US2060884A
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US2124398A
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US2030203A
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US2527203A
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US2619841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |