US2446007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug cover
Assignee: Outboard Marine & Manufacturing Co
•
Filing: 1944-12-11
•
Granted: 1948-07-27
•
Expires: 1964-12-11
Abstract
No abstract record available.
Inventors
- 👤 Melvin S Hook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:06
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/02; H01T13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1050885A
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US1139973A
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US1298799A
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GB155066A
Cited
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GB290820A
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US1862876A
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US1912980A
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FR746326A
Cited
US2177509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |