Apparatus, process for charging insulating toner particles
CA 1198765 A · Owner: Xerox Corporation · Inventors: Wayman, William H.; Hays, Dan A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is generally directed to an improved apparatus and an improved process for charging insulating toner particles to either a positive or negative polarity, and an electrostatographic imaging system containing such apparatus, the apparatus including a means for transporting insulating toner particles, and a means for injecting charges into the insulating toner particles, the means for transporting and the means for, injecting, being charged to a predetermined potential. More specifically in, one embodiment the apparatus of the present invention is comprised of a roller means containing a coating thereon a toner supply means containing, therein uncharged insulating toner …
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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 December 31, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2002.
- 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.