US2612151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug and method of making the same
Assignee: Bendix Aviation Corp
•
Filing: 1946-11-27
•
Granted: 1952-09-30
•
Expires: 1966-11-27
Abstract
No abstract record available.
Inventors
- 👤 Harry A Brinson
- 👤 Embry D Faatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:25
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293381A
Cited
US2360287A
Cited
US2406966A
Cited
US2400917A
Cited
GB559805A
Cited
US2416107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |