US2856797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed geared pulley
Assignee: Individual
•
Filing: 1953-06-01
•
Granted: 1958-10-21
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Carroll F Dassance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:52
CPC Classifications
F; F16; F16H; F16H37/00; F16H2702/00; F16H2702/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US800268A
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US980948A
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US1081763A
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US1083863A
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US1436817A
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US2087261A
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US2296573A
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US2349332A
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US2477024A
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US2602600A
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US2667048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |