Patent US2333360A successfully refreshed from Google Patents.
Patent US3555490A successfully refreshed from Google Patents.
US3555490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch type pyrotechnic detonator circuit test probe
Assignee: Individual
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Filing: 1968-11-21
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Granted: 1971-01-12
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Expires: 1988-11-21
Abstract
Abstract A TEST PROBE APPARATUS HAVING ELECTRICAL CONTACTS FOR DETECTING ELECTRICAL ENERGY IN BREECH CAPS OR PYROTECHNIC CARTRIDGE WELLS THAT IN OPERATION CARRY AN EXPLOSIVE FOR DISCHAGING WEAPONS, THE APPARATUS INCLUDING LATCH ELEMENTS FOR SECURING THE PROBE. THE LATCH ELEMENTS HAVE RADIALLY EXTENDING FINGERS MOUNTED ON AN AXIALLY EXTENDING BASE, AND ARE ADAPTED TO EXTEND THROUGH ELONGATED APERTURES IN AN EXTREMITY OF A SHELL CARRIED ON ONE END OF THE PROBE. THE FINGERS ARE ACTUATED BY A MOVABLE SLEEVE HAVING A PORTION INSIDE THE SHELL FOR MOVEMENT BETWEEN FORWARD AND REARWARD POSITIONS TO SELECTIVELY MOVE THE FINGERS OUTWARD FOR ENGAGING A THREAD RELIEF GROOVE OR EQUIVALENT.
Inventors
- 👤 Robert A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:20
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/629; H01R13/633; H01R13/637; F; F42; F42C; F42C21/00; G; G01; G01R; G01R1/00; G01R1/02; G01R1/06; G01R1/067; H01R13/627; H01R13/6276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |