Electronic flash apparatus for a camera
CA 1104201 A · Owner: Toshiba Photo Products Co. Ltd. · Inventors: Kuraishi, Kaoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic flash apparatus for a camera is provided with a main discharge capacitor, a charging means for charging the capacitor, a flash discharge tube which radiates light through the discharge of a charge stored in the capacitor, and a display section for displaying an exposure condition at the time of photograph. The display section includes a display portion for displaying an f-number corresponding to a film sensitivity a portion for displaying a plurality of photographable distances corresponding to a charged voltage across the capacitor and the f-number and a charged voltage discriminating circuit having a plurality of light emission elements for successively and stepwisely …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.