US3382181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for engine deposit removal
Assignee: Sunoco Inc
•
Filing: 1966-12-02
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Granted: 1968-05-07
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Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul E Oberdorfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:59
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/266; C10; C10L; C10L10/00; C10L10/06; C11D7/263; C11D7/267; C11D7/32; C11D7/3227; C11D7/50; C11D7/5004; C11D7/5022; F; F02; F02M; F02M25/00; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2748084A
Cited
US2935479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |