US3169482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro explosive device having a surface spark gap
Assignee: EITELMCCULLOUGH Inc
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Filing: 1963-08-14
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Granted: 1965-02-16
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Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Lowell A Noble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:18
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/14; F42B3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DETONATOR DEVICE COMPRISING: A METALLIZED CERAMIC ROD HAVING A SURFACE SPARK GAP INTERMEDIATE THE ENDS THEREOF, A CONDUCTIVE SHELL COAXIALLY DISPOSED AROUND SAID SPARK GAP ON SAID METALLIZED CERAMIC ROD, A CERAMIC BODY COAXIALLY INTERPOSED BETWEEN SAID METALLIZED CERAMIC ROD AND SAID CONDUCTIBE SHELL, AND A BRIDGE WIRE ELECTRICALLY COUPLED BETWEEN AN END PORTION OF SAID METALLIZED CERAMIC ROD AND SAID CONDUCTIVE SHELL.
Claim 2
Dependent Claim
64 words
A DETONATOR DEVICE COMPRISING: A METALLIZED CERAMIC ROD HAVING A SURFACE SPARK GAP INTERMEDIATE THE ENDS THEREOF, A CONDUCTIVE SHELL COAXIALLY DISPOSED AROUND SAID SPARK GAP ON SAID METALLIZED CERAMIC ROD, A CERAMIC BODY COAXIALLY INTERPOSED BETWEEN SAID METALLIZED CERAMIC ROD AND SAID CONDUCTIBE SHELL, AND A BRIDGE WIRE ELECTRICALLY COUPLED BETWEEN AN END PORTION OF SAID METALLIZED CERAMIC ROD AND SAID CONDUCTIVE SHELL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |