Extended range variable magnification reproduction machine
CA 1097723 A · Owner: Xerox Corporation · Inventors: Zucker, Edwin; Shogren, David K.; Bock, Edward C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A document reproduction machine having an extended range of magnifications empolys a scanning optical system which is controlled as to scanning speed and distance of travel by the selected magnifiaction. In an extended reduciton copying range the speed of the scanning optical system is automatically increased in proportion to the selected magnification reduction but the increase in scanning distance is limited to the platen size. Clutch means are employed to terminate the normally increasing scanning distance in the extended reduction range.
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
- Granted March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1998.
- 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.