Wedge scanner utilizing two dimensional sensing arrays
CA 2117709 C · Owner: Xerox Corporation · Inventors: Turner, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a novel book scanner that employs 2-dimensional array detectors attached, either rigidly or rotatably at a common edge and, disposed in a wedge shaped manner. The opposite edges of the arrays are housed in a base portion. The base portion additionally supports backlight to provide the necessary illumination of the book pages and the read-out electronics which output the image data stored in the detectors to other processing units that may use such data.
Read the whole patent
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
- Filed September 19, 1994 and granted May 20, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2016.
- 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.