US2938591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive aggregate for motor vehicles
Assignee: Dr Ing HCF Porsche AG
•
Filing: 1956-11-26
•
Granted: 1960-05-31
•
Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand A E Porsche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
B; B60; B60K; B60K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2001029A
Cited
US1974033A
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US2035032A
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US2143889A
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US2087619A
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DE631145C
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US2014670A
Cited
US2128930A
Cited
US2237369A
Cited
GB453387A
Cited
US2116666A
Cited
US2199517A
Cited
FR872978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |