Patent US3434708A successfully refreshed from Google Patents.
US3434708A
Expired / Lapsed
US
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Two-stage rubber vehicle suspension
Assignee: Mack Trucks Inc
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Filing: 1967-02-10
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Granted: 1969-03-25
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Expires: 1987-02-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Hawk Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:20
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/40; F16F1/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1825093A
Cited
US2493026A
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US2686667A
Cited
US2660423A
Cited
US2982536A
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US3258134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |