Patent US2670783A successfully refreshed from Google Patents.
Patent US2688259A successfully refreshed from Google Patents.
US2688259A
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Engine control for motor vehicles
Assignee: Rolls Royce Solutions GmbH
•
Filing: 1949-12-28
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Granted: 1954-09-07
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Expires: 1969-12-28
Abstract
No abstract record available.
Inventors
- 👤 Maybach Karl
- 👤 Seifert Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:44
CPC Classifications
B; B61; B61C; B61C9/00; B61C9/08; B61C9/10; F; F02; F02D; F02D29/00; F02D2700/00; F02D2700/07; Y; Y10; Y10S; Y10S74/00; Y10S74/02; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |