US3022772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary power steering valve with torsion bar centering
Assignee: Motors Liquidation Co
•
Filing: 1958-09-19
•
Granted: 1962-02-27
•
Expires: 1978-09-19
Abstract
No abstract record available.
Inventors
- 👤 Philip B Zeigler
- 👤 Thompson William Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:13
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; B; B62; B62D; B62D5/00; B62D5/06; B62D5/20; B62D5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1479544A
Cited
US1947973A
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US2605854A
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US2640322A
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US2740383A
Cited
US2770098A
Cited
US2688258A
Cited
US2824550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |