US3167309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydropneumatic shock absorber for automotive vehicles
Assignee: ZF Friedrichshafen AG
•
Filing: 1961-02-08
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Granted: 1965-01-26
•
Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 Wossner Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06; F16F9/066; F16F9/067; F16F9/08; F16F9/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1457122A
Cited
GB296897A
Cited
US1775349A
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US2451171A
Cited
US2439349A
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US2483429A
Cited
US2721074A
Cited
US2719611A
Cited
US2823915A
Cited
US2939696A
Cited
US3078965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |