Vehicle identification camera
CA 1307692 C · Owner: Polaroid Corporation · Inventors: Slavitter, Frederick; Mauchan, Donald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vehicle identification camera arrangement for photographing a vehicle identification number (VIN) plate through a vehicle windshield includes a housing having an object window at its distal end forwardly of the lens and an aperture stop adjoining the lens with the length of housing from the lens establishing the distance to the windshield. The aperture stop sufficiently reduces the aperture to increase the depth of field to encompass the variations in distance of the VIN plate behind the vehicle windshield. Preferably the arrangement is provided as an adapter housing whose interior is divided into an upper lightbox section and a lower exposure section by an opaque baffle and a diffusing …
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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 September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
- 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.