Patent US2955840A successfully refreshed from Google Patents.
US2955840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring system for vehicles
Assignee: Individual
•
Filing: 1955-10-06
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Granted: 1960-10-11
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Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Drechsel Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:03
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/22; B60; B60G; B60G21/00; B60G21/02; B60G21/04; B60G2200/00; B60G2200/30; B60G2200/32; B60G2200/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1462638A
Cited
US2354219A
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US2251698A
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US2563261A
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US2589009A
Cited
GB658989A
Cited
US2653828A
Cited
US2852269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |