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US3250909A Expired / Lapsed US ⏱️ 0.0 years remaining

Rechargeable flashlight unit

Assignee: Scovill Inc
•
Filing: 1964-05-07
•
Granted: 1966-05-10
•
Expires: 1984-05-07
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Abstract

No abstract record available.

Inventors

  • 👤 Oldenburger Samuel Carl

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 05:57
CPC Classifications
F; F21; F21V; F21V14/00; F21V14/02; F21L; F21L4/00; F21L4/08; F21V15/00; F21V15/04; F21V19/00; F21V19/02; F21V21/00; F21V21/08; F21V21/084; F21V21/14; F21V21/30

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 201 words
A FLASHLIGHT ASSEMBLY COMPRISING A HOUSING HAVING A TRANSPARENT FRONT WALL, A SUBSTANTIALLY ANNULAR SIDE WALL AND AN ANNULAR REAR WALL, A SLEEVE MEMBER RIGIDLY SECURED TO AND PROJECTING AXIALLY INWARDLY FROM SAID REAR WALL, A MASS OF RESILIENT DEFORMABLE MATERIAL IN THE REAR PORTION OF SAID HOUSING SURROUNDING SAID SLEEVE MEMBER, A REFLECTOR SECURED TO SAID SLEEVE MEMBER AND EXTENDING FORWARDLY SUBSTANTIALLY INTO ENGAGEMENT WITH SAID FRONT WALL, A LAMP BULB MOVABLY MOUNTED IN SAID SLEEVE MEMBER AND PROJECTING CENTRALLY INTO SAID REFLECTOR, A PLURALITY OF INTERCONNECTED BATTERIES DISPOSED RADIALLY AROUND SAID SLEEVE MEMBER WITH THEIR REAR PORTIONS ENGAGING SAID MASS OF DEFORMABLE MATERIAL AND THEIR FORWARD PORTIONS WEDGED BETWEEN THE REFLECTOR AND THE FORWARD PORTION OF SAID ANNULAR SIDE WALL AND DEFINING A SOURCE OF CURRENT HAVING TWO TERMINALS, SAID LAMP BULB HAVING A SHELL CONTACT PORTION AND A REAR CENTER CONTACT ELEMENT, MEANS IN THE FORWARD END OF SAID SLEEVE MEMBER CONNECTED TO ONE TERMINAL OF SAID SOURCE AND CONDUCTIVELY ENGAGING SAID SHELL CONTACT PORTION, A SWITCH-OPERATING MEMBER THREADEDLY ENGAGED IN SAID SLEEVE MEMBER, AND MEANS TO CONNECT SAID CENTER CONTACT ELEMENT TO THE OTHER TERMINAL OF SAID SOURCE RESPONSIVE TO INWARD ROTATIONAL MOVEMENT OF SAID SWITCH-OPERATING MEMBER.

References Cited (Backward Citations)

US650418A Cited
US1900906A Cited
US2036088A Cited
US2354853A Cited
US2674685A Cited
US3069538A Cited
US3194230A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-05-09 1969-11-08 1970-05-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-05-09 1973-11-08 1974-05-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-05-09 1977-11-08 1978-05-10 $7700.00 Window Closed / Lapsed

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