US3418510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triggered spark gap electric arcing device
Assignee: United States Department of the Navy
•
Filing: 1965-11-30
•
Granted: 1968-12-24
•
Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Melhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:16
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/04; G10K15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2499777A
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US2481887A
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US3052185A
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US2936390A
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US2935648A
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GB940978A
Cited
US2997623A
Cited
US3207947A
Cited
US3267320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |