Patent US2915920A successfully refreshed from Google Patents.
US2915920A
Expired / Lapsed
US
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Vehicle drive mechanism
Assignee: Rockwell-Standard Corp
•
Filing: 1955-10-13
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Granted: 1959-12-08
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Expires: 1975-10-13
Abstract
No abstract record available.
Inventors
- 👤 Beverly W Keese
- 👤 John E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:28
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/035; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H57/037; F16H2057/02039; F16H2057/02043; F16H2057/02052; F16H2057/02056; F16H2057/02086; F16H57/023; F16H2057/0235; F16H2702/00; F16H2702/02; F16H2702/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374947A
Cited
US675765A
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US797694A
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US1032517A
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GB475166A
Cited
US2345351A
Cited
US2506999A
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US2647597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |