Patent US2915017A successfully refreshed from Google Patents.
US2915017A
Expired / Lapsed
US
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Power transmission apparatus
Assignee: Individual
•
Filing: 1955-01-10
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Granted: 1959-12-01
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Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Whitney James Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:20
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US569350A
Cited
US767028A
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US1150478A
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US1187628A
Cited
US1294121A
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US1298178A
Cited
US1388234A
Cited
US1607383A
Cited
GB300076A
Cited
US2233017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |