Patent US2939429A successfully refreshed from Google Patents.
US2939429A
Expired / Lapsed
US
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Rotary valve for power steering mechanism
Assignee: GERMANE CORP
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Filing: 1957-10-21
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Granted: 1960-06-07
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Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Lynn L Charlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:10
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/08; B62D5/083; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1479544A
Cited
US1657412A
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FR655892A
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US1937470A
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US1947973A
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GB391775A
Cited
US1947991A
Cited
US2464110A
Cited
US2605854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |