Laser scanning apparatus
CA 1262489 C · Owner: Elias, John G. · Inventors: Lee, Jerald D.; Elias, John G.; Rockney, Bennett H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser scanning apparatus is disclosed. The apparatus includes a curved field for receiving a radiograph to be scanned, a source of interrogating radiation, a means for producing a focussed scanning beam of interrogating radiation onto the radiograph a gantry for mounting the source and beam producing means; a means for relatively displacing the gantry with respect to the field so as to cause the beam to scan the field in raster fashion; and a photodetector positioned with respect to the field to receive radiation transmitted through the radiograph. The photodetector itself comprises a plurality of semiconductor elements connected electrically in parallel and physically arranged in …
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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 October 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
- 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.