Patent US3255547A successfully refreshed from Google Patents.
US3255547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firearm bolt mechanism for firing electric filament primed cartridges
Assignee: GREGO Inc
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Filing: 1965-01-28
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Granted: 1966-06-14
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Leverette B Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:31
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A BOLT ASSEMBLY FOR A FIREARM SUITABLE FOR FIRING ELECTRIC FILAMENT PRIMED CARTRIDGES COMPRISING AN ELONGATED BOLT HAVING A LONGITUDINALLY EXTENDING CYLINDRICAL BORE, AT LEAST ONE ELECTRIC STORAGE BATTERY MOUNTED IN SAID BORE HAVING FORWARDLY AND REARWARDLY DISPOSED TERMINALS, AN ELECTRODE MOUNTED IN ONE END OF SAID BOLT IN ELECTRICAL CONTACT WITH THE FORWARDLY DISPOSED TERMINAL OF SAID ELECTRIC STORAGE BATTERY, INSULATED FROM SAID BOLT, HAVING A PORTION THEREOF EXPOSED FOR ENGAGMENT WITH THE PRIMER OF A CARTRIDGE, A MOUNTING INSERT CONSISTING OF AN INSULATING MATERIAL MOUNTED IN THE OPPOSITE END OF SAID BORE, AN ELECTRODE MOUNTED IN SAID MOUNTING INSERT ENGAGEABLE WITH SAID REARWARDLY DISPOSED TERMINAL OF SAID ELECTRIC STORAGE BATTERY AND SAID SECOND MENTIONED ELECTRODE HAVING MEANS SELECTIVELY ENGAGEABLE FOR GROUNDING SAID ELECTRIC STORAGE BATTERY TO APPLY A VOLTAGE TO SAID ELECTRODE ENGAGEABLE WITH THE PRIMER OF A CARTRIDGE.
Claim 2
Dependent Claim
141 words
A BOLT ASSEMBLY FOR A FIREARM SUITABLE FOR FIRING ELECTRIC FILAMENT PRIMED CARTRIDGES COMPRISING AN ELONGATED BOLT HAVING A LONGITUDINALLY EXTENDING CYLINDRICAL BORE, AT LEAST ONE ELECTRIC STORAGE BATTERY MOUNTED IN SAID BORE HAVING FORWARDLY AND REARWARDLY DISPOSED TERMINALS, AN ELECTRODE MOUNTED IN ONE END OF SAID BOLT IN ELECTRICAL CONTACT WITH THE FORWARDLY DISPOSED TERMINAL OF SAID ELECTRIC STORAGE BATTERY, INSULATED FROM SAID BOLT, HAVING A PORTION THEREOF EXPOSED FOR ENGAGMENT WITH THE PRIMER OF A CARTRIDGE, A MOUNTING INSERT CONSISTING OF AN INSULATING MATERIAL MOUNTED IN THE OPPOSITE END OF SAID BORE, AN ELECTRODE MOUNTED IN SAID MOUNTING INSERT ENGAGEABLE WITH SAID REARWARDLY DISPOSED TERMINAL OF SAID ELECTRIC STORAGE BATTERY AND SAID SECOND MENTIONED ELECTRODE HAVING MEANS SELECTIVELY ENGAGEABLE FOR GROUNDING SAID ELECTRIC STORAGE BATTERY TO APPLY A VOLTAGE TO SAID ELECTRODE ENGAGEABLE WITH THE PRIMER OF A CARTRIDGE.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |