Electrically heatable window for motor vehicle
CA 1255728 A · Owner: General Motors Corporation · Inventors: Sprenger, Willi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
C-3,771, F-4, ELECTRICALLY HEATABLE WINDOW FOR MOTOR VEHICLE, Abstract of the Disclosure An electrically heatable fixed rear window of a motor vehicle has resistance heating strips extending over part of the window area and a bus bar which electrically connects the resistance heating strips to each other and provides a contact on the window which cooperates with, and a counter-contact on the motor vehicle body which is connected to an electrical power source such as the motor vehicle battery. The counter-contact on the motor vehicle body comprises a compression spring-loaded pin which moves in the direction perpendicularly of the window surface which is connected at its rear end to a power …
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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 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.