Patent US4686506A successfully refreshed from Google Patents.
US3136565A
Expired / Lapsed
US
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Suspension mechanism
Assignee: Individual
•
Filing: 1963-02-21
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Granted: 1964-06-09
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Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Bischoff
- 👤 Rayburn A Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:56
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/32; B60G11/48; B60G11/56; B60G11/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2039670A
Cited
US2403145A
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US2375670A
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US2494144A
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FR1043096A
Cited
US2710184A
Cited
US2819893A
Cited
US3086792A
Cited
US3075787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |