Patent US2939698A successfully refreshed from Google Patents.
US2939698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air spring
Assignee: Motors Liquidation Co
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Filing: 1956-03-30
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Granted: 1960-06-07
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Von D Polhemus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:49
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/05; B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; B60G17/048; B60G17/0485; B60G17/052; B60G17/0521; F16F9/049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |