US3277875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark advance device for internal combustion engine
Assignee: Mitsubishi Electric Corp
•
Filing: 1963-11-05
•
Granted: 1966-10-11
•
Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Miki Takao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:34
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/145; F02P5/155; F02P5/1553; F02P5/1556; F02P7/00; F02P7/06; F02P7/067; F02P7/07; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2918913A
Cited
US2898392A
Cited
GB861534A
Cited
US3060346A
Cited
US3139876A
Cited
US3184640A
Cited
US3161803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |