US3229032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Igniter plug
Assignee: Motors Liquidation Co
•
Filing: 1960-05-02
•
Granted: 1966-01-11
•
Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond D Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:11
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/34; H01T21/00; H01T21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN IGNITER PLUG COMPRISING A CERAMIC INSULATOR HAVING A CENTERBORE THERETHROUGH, SAID CENTERBORE HAVING A LOWER PORTION OF RELATIVELY SMALL DIAMETER AND AN UPPER PORTION OF RELATIVELY LARGE DIAMETER WITH THE JUNCTION BETWEEN SAID PORTION CONSTITUTING AN INWARDLY EXTENDING ANNULAR SHOULDER IN SAID CENTERBORE, AN ELONGATED ELECTRODE EXTENDING THROUGH SAID CENTERBORE HAVING AN ENLARGED PORTION EXTERIOR OF AND ABUTTING THE BOTTOM OF SAID INSULATOR AND A PORTION OF REDUCED DIAMETER INTERMEDIATE THE ENDS THEREOF AND ADJACENT THE SHOULDER IN SAID CENTERBORE, AND A FLAT ANNULAR METAL GASKET DISPOSED IN THE ENLARGED PORTION OF SAID INSULATOR CENTERBORE WEDGED BE-
Claim 2
Dependent Claim
98 words
AN IGNITER PLUG COMPRISING A CERAMIC INSULATOR HAVING A CENTERBORE THERETHROUGH, SAID CENTERBORE HAVING A LOWER PORTION OF RELATIVELY SMALL DIAMETER AND AN UPPER PORTION OF RELATIVELY LARGE DIAMETER WITH THE JUNCTION BETWEEN SAID PORTION CONSTITUTING AN INWARDLY EXTENDING ANNULAR SHOULDER IN SAID CENTERBORE, AN ELONGATED ELECTRODE EXTENDING THROUGH SAID CENTERBORE HAVING AN ENLARGED PORTION EXTERIOR OF AND ABUTTING THE BOTTOM OF SAID INSULATOR AND A PORTION OF REDUCED DIAMETER INTERMEDIATE THE ENDS THEREOF AND ADJACENT THE SHOULDER IN SAID CENTERBORE, AND A FLAT ANNULAR METAL GASKET DISPOSED IN THE ENLARGED PORTION OF SAID INSULATOR CENTERBORE WEDGED BE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |