Patent US4446509A successfully refreshed from Google Patents.
US4446509A
Expired / Lapsed
US
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Flashlight with compass means integral thereto
Assignee: Individual
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Filing: 1983-02-28
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Granted: 1984-05-01
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Expires: 2003-02-28
Abstract
Abstract A portable hand held battery operated flashlight having mounted thereon, a magnetic compass which receives illumination from the flashlight or which may have its own illuminating means. The compass is mounted such that compass readings may be taken by the holder of the flashlight whenever the flashlight is illuminated.
Inventors
- 👤 Charles E. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:12
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/008; G; G01; G01C; G01C17/00; G01C17/02; G01C17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A combination of the class described involving an electric flashlight and magnetic compass, comprising: a body structure preinjection molded from a material have shock resistant and electrical insulating characteristics; an elongated tubular cavity for receiving a plurality of batteries; a second cavity adopted to receive a bell type lens and a light emitting bulb; a magnetic compass including an internal light emitting source connected in series with said light emitting bulb, said compass position forward of said body structure and having a line of sight parallel to a light beam emitted by said light emitting bulb; switch means for connecting said light emitting bulb and said light emitting source in series with said batteries; and said body structure further defining handle means for holding said flashlight, said handle means and battery container being one continuous U-shaped tube.
Claim 2
Dependent Claim
137 words
A combination of the class described involving an electric flashlight and magnetic compass, comprising: a body structure preinjection molded from a material have shock resistant and electrical insulating characteristics; an elongated tubular cavity for receiving a plurality of batteries; a second cavity adopted to receive a bell type lens and a light emitting bulb; a magnetic compass including an internal light emitting source connected in series with said light emitting bulb, said compass position forward of said body structure and having a line of sight parallel to a light beam emitted by said light emitting bulb; switch means for connecting said light emitting bulb and said light emitting source in series with said batteries; and said body structure further defining handle means for holding said flashlight, said handle means and battery container being one continuous U-shaped tube.
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |