US3706035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrable revolution measuring circuit with supply voltage transient suppression
Assignee: TDK Micronas GmbH
•
Filing: 1971-05-05
•
Granted: 1972-12-12
•
Expires: 1991-05-05
Abstract
Abstract THIS RELATES TO A MONOLITHIC INTEGRABLE CIRCUIT FOR MEASURING THE RATE OF REVOLUTIONS OF COMBUSTION ENGINES. A MONOSTABLE MULTIVIBRATOR IS TRIGGERED BY THE SHARP NEEDLESHAPED PART OF EACH IGNITION PULSE AND GENERATES RECTANGULAR PULSES OF CONSTANT DURATION WHICH ARE INTEGRATED BY AN INDICATING MEASURING INSTURMENT.
Inventors
- 👤 Wolfgang Hoehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:18
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/4802; G01P3/4807
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |