Patent US2941514A successfully refreshed from Google Patents.
US2941514A
Expired / Lapsed
US
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Auxiliary power steering for motor vehicles
Assignee: ZF Friedrichshafen AG
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Filing: 1957-05-24
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Granted: 1960-06-21
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Expires: 1977-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jablonsky Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:48
CPC Classifications
B; B62; B62D; B62D3/00; B62D3/02; B62D3/04; B62D3/06; B62D5/00; B62D5/06; B62D5/20; B62D5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1937470A
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US1937485A
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GB354327A
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US1959177A
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US2220339A
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US2334918A
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GB618457A
Cited
US2755778A
Cited
US2788770A
Cited
US2722199A
Cited
US2828721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |