Patent US2653550A successfully refreshed from Google Patents.
US2653550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Vickers Inc
•
Filing: 1950-10-07
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Granted: 1953-09-29
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Expires: 1970-10-07
Abstract
No abstract record available.
Inventors
- 👤 Duncan B Gardiner
- 👤 Ernst F Klessig
- 👤 Henry C Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F04C2/3446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US465907A
Cited
US1010956A
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US1771963A
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US1989900A
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US2098652A
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US2266820A
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US2312891A
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US2312655A
Cited
US2487721A
Cited
US2525619A
Cited
US2544988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |