Multiple magnification mode copying apparatus
CA 1252325 A · Owner: Xerox Corporation · Inventors: Lane, John N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiple magnification mode copying apparatus includes a full and half rate scanning mirror system and a lens for forming an image of an object to be copied. The lens may be shifted along its optical axis to any one of a plurality of predetermined positions to change the magnification mode of the apparatus, and at the same time shifted transversely of the optical axis by the appropriate amount for each of said predetermined positions in order to maintain one edge of the image adjacent one edge of the copy regardless of the magnification mode. The half rate mirror system is also shifted so as to achieve the required conjugate lengths. The means for shifting the lens comprises a first cable …
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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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 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.