Patent US2174996A successfully refreshed from Google Patents.
US2174996A
Expired / Lapsed
US
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Springing means for vehicles
Assignee: Dr Ing HCF Porsche AG
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Filing: 1936-06-06
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Granted: 1939-10-03
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Expires: 1956-06-06
Abstract
No abstract record available.
Inventors
- 👤 Rabe Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:18
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/02; B; B60; B60G; B60G11/00; B60G11/18; B60G11/20; B60G17/00; B60G17/02; B60G17/025; B64; B64C; B64C27/00; B64C27/02; B64C27/021; B64C27/025; Y; Y02; Y02E; Y02E50/00; Y02E50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-10-02 | 1943-04-03 | 1943-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-02 | 1947-04-03 | 1947-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-02 | 1951-04-03 | 1951-10-03 | $7700.00 | Window Closed / Lapsed |