US3572103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analyzer for multi-cylinder internal combustion engine having means for identifying individual cylinders
Assignee: Marquette Corp
•
Filing: 1967-01-06
•
Granted: 1971-03-23
•
Expires: 1987-01-06
Abstract
Abstract AN ANALYZER FOR MULTICYLINDER INTERNAL COMBUSTION ENGINES IN WHICH THERE IS AN ELECTRONIC COUNTER TRIGGERED BY PULSES FROM THE IGNITION SYSTEM AND NORMALLY RESET BY THE FIRING VOLTAGE APPLIED TO ANY OF SELECTED SPARK PLUGS IN WHICH THE ELECTRONIC COUNTER HAS A PLURALITY OF STAGES CORRESPONDING TO THE NUMBER OF CYLINDERS IN THE ENGINE AND IN WHICH THERE IS AN ELECTRICAL TESTING MEANS ADAPTED TO BE OPERATED BY THE OUTPUT SIGNAL OF ANY ONE OR MORE STAGES OF THE COUNTER TO PRODUCE AN ELECTRICAL EFFECT FOR ANALYZING THE PERFORMANCE OF THE ENGINE.
Inventors
- 👤 Joseph A Marino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:53
CPC Classifications
F; F02; F02P; F02P17/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |