Patent US3297840A successfully refreshed from Google Patents.
US3297840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashlight lock-off switch
Assignee: Union Carbide Corp
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Filing: 1965-06-18
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Granted: 1967-01-10
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Expires: 1985-06-18
Abstract
No abstract record available.
Inventors
- 👤 Donald C Gray
- 👤 William H Doring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
F; F21; F21L; F21L4/00; F21V; F21V23/00; F21V23/04; F21V23/0414
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A SWITCH FOR A FLASHLIGHT HAVING A CASING PROVIDED WITH AN OPENING THEREIN, COMPRISING A SWITCH SLIDE SLIDABLY MOUNTED ON THE OUTSIDE OF SAID CASING BETWEEN AN ON AND OFF POSITION, A RESILIENT CONDUCTIVE CONTACT STRIP MOUNTED ON THE SWITCH SLIDE BUT RESIDING ON THE INSIDE OF SAID CASING AND BEING MOVABLE WITH SAID SWITCH SLIDE AND GUIDED BY SAID OPENING, A SWITCH BUTTON FREE FLOATING AND BEING BIASED AGAINST SHOULDERS FORMING AN OPENING IN SAID SWITCH SLIDE BY MEANS OF SAID CONTACT STRIP, SAID SWITCH BUTTON BEING BIASED BY THE ENGAGEMENT OF A PORTION OF SAID CONTACT STRIP WITH SAID SWITCH BUTTON; SAID CONTACT STRIP COMPRISING A DETENT TAB ADJACENT TO SAID PORTION OF SAID CONTACT STRIP WHICH IS IN ENGAGEMENT WITH SAID SWITCH BUTTON AND SAID DETENT TAB BEING ENGAGEABLE WITH COOPERABLE DETENT RECEIVING MEANS WITH SAID CASING WHEREBY PRESSING SAID SWITCH BUTTON DOWNWARDLY RELEASES SAID DETENT TAB FROM SAID COOPERABLE DETENT RECEIVING MEANS AND PERMITS SAID SWITCH SLIDE TO BE MOVABLE TO AN ON POSITION WHEREIN SAID CONTACT STRIP IS LONGITUDINALLY MOVED TO ENGAGE A COOPERATIVE CONTACT MEMBER.
Claim 2
Dependent Claim
181 words
A SWITCH FOR A FLASHLIGHT HAVING A CASING PROVIDED WITH AN OPENING THEREIN, COMPRISING A SWITCH SLIDE SLIDABLY MOUNTED ON THE OUTSIDE OF SAID CASING BETWEEN AN ON AND OFF POSITION, A RESILIENT CONDUCTIVE CONTACT STRIP MOUNTED ON THE SWITCH SLIDE BUT RESIDING ON THE INSIDE OF SAID CASING AND BEING MOVABLE WITH SAID SWITCH SLIDE AND GUIDED BY SAID OPENING, A SWITCH BUTTON FREE FLOATING AND BEING BIASED AGAINST SHOULDERS FORMING AN OPENING IN SAID SWITCH SLIDE BY MEANS OF SAID CONTACT STRIP, SAID SWITCH BUTTON BEING BIASED BY THE ENGAGEMENT OF A PORTION OF SAID CONTACT STRIP WITH SAID SWITCH BUTTON; SAID CONTACT STRIP COMPRISING A DETENT TAB ADJACENT TO SAID PORTION OF SAID CONTACT STRIP WHICH IS IN ENGAGEMENT WITH SAID SWITCH BUTTON AND SAID DETENT TAB BEING ENGAGEABLE WITH COOPERABLE DETENT RECEIVING MEANS WITH SAID CASING WHEREBY PRESSING SAID SWITCH BUTTON DOWNWARDLY RELEASES SAID DETENT TAB FROM SAID COOPERABLE DETENT RECEIVING MEANS AND PERMITS SAID SWITCH SLIDE TO BE MOVABLE TO AN ON POSITION WHEREIN SAID CONTACT STRIP IS LONGITUDINALLY MOVED TO ENGAGE A COOPERATIVE CONTACT MEMBER.
References Cited (Backward Citations)
US1436340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |