Patent US3503255A successfully refreshed from Google Patents.
US3503255A
Expired / Lapsed
US
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Diesel engine analyzer
Assignee: Mobil Oil AS
•
Filing: 1969-04-07
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Granted: 1970-03-31
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Expires: 1989-04-07
Abstract
No abstract record available.
Inventors
- 👤 Reimar Germann
- 👤 Kurt Wiederwohl
- 👤 Martin Schwertfuhrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:08
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/202; G01M; G01M15/00; G01M15/04; G01M15/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2082030A
Cited
US2445046A
Cited
US2925543A
Cited
US2958812A
Cited
US3101611A
Cited
US3243997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |