US3238447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Igniter plug with spark-sensing means
Assignee: Motors Liquidation Co
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Filing: 1961-08-15
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Granted: 1966-03-01
•
Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Wilfred A Bychinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:52
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/58; H01T21/00; H01T21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN AN IGNITER PLUG HAVING A PAIR OF ELECTRODES WITH PORTIONS IN SPACED RELATIONSHIP TO PROVIDE A SPARK GAP THEREBETWEEN AND MEANS CONNECTED TO ONE OF SAID ELECTRODES TO INDICATE A VOLTAGE DROP ACROSS TWO POINTS THEREON WHEN SAID IGNITER OPERATES TO PRODUCE A SPARK IN SAID GAP, THE IMPROVEMENT WHICH COMPRISES AN ELECTRICALLY CONDUCTING MEMBER INTERPOSED BETWEEN SAID ELECTRODES AND ELECTRICALLY CONNECTED TO SAID ONE OF SAID ELECTRODES TO PREVENT
Claim 2
Dependent Claim
71 words
IN AN IGNITER PLUG HAVING A PAIR OF ELECTRODES WITH PORTIONS IN SPACED RELATIONSHIP TO PROVIDE A SPARK GAP THEREBETWEEN AND MEANS CONNECTED TO ONE OF SAID ELECTRODES TO INDICATE A VOLTAGE DROP ACROSS TWO POINTS THEREON WHEN SAID IGNITER OPERATES TO PRODUCE A SPARK IN SAID GAP, THE IMPROVEMENT WHICH COMPRISES AN ELECTRICALLY CONDUCTING MEMBER INTERPOSED BETWEEN SAID ELECTRODES AND ELECTRICALLY CONNECTED TO SAID ONE OF SAID ELECTRODES TO PREVENT
References Cited (Backward Citations)
US1395570A
Cited
US1536808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |