US2453048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug and method of making the same
Assignee: Bendix Aviation Corp
•
Filing: 1943-07-13
•
Granted: 1948-11-02
•
Expires: 1963-07-13
Abstract
No abstract record available.
Inventors
- 👤 Tognola Tullio
- 👤 Louis H Segall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:31
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/46; H01T13/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2045781A
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US2079561A
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US1292661A
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US1588489A
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US1812438A
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US2060219A
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US2301686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |