Patent US3025843A successfully refreshed from Google Patents.
US3025843A
Expired / Lapsed
US
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Control arrangement for internal combustion engines
Assignee: Dr Ing HCF Porsche AG
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Filing: 1960-03-01
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Granted: 1962-03-20
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Wagner Max
- 👤 Schubert Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:11
CPC Classifications
F; F02; F02M; F02M63/00; F02M63/02; F02M63/0205; F02M63/022
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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |