Photoelectric scanner
CA 2024632 C · Owner: Frick, Beat · Inventors: Frick, Beat; Ursprung, Karl; Kraft, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The light emitted by a source of light is passed by means of optical fibers or bundles of, optical fibers in lines over a master to be scanned. In the process an , orifice of a disk, rotated by a motor sequentially projects the light onto one optical fiber or bundle of fibers, leading to the master. The light exciting from the light emitting end of the optical fiber or, bundle of optical fiber illuminates the master. On the other side of the master a, corresponding optical fiber or bundle of fibers receives the light coming from the master, and conducts it to a receiver.
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 5, 1990 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2012.
- 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.