Carrier materials of insulating and conductive particles
CA 1112500 A · Owner: Xerox Corporation · Inventors: Williams, Meurig W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electrostatographic carrier particles having insulating and/or conductive surface area are provided by partially or completely coating carrier materials with amorphous polyamides. The carrier particles are characterized as possessing mechanical toughness superior to known coated carrier materials, obtain high degrees of coatability and coating integrity, and possess excellent triboelectric properties even at high relative humidity conditions. The carrier particles may be mixed with any suitable toner material to form developer mixtures and employed to develop electrostatic latent images.
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 November 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 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.