Expired Canadian patentCanada
Air-fuel mixture control apparatus for internal combustion engines using digitally controlled valves
CA 1054697 A · Owner: Nissan Motor Co. Ltd. · Inventors: Aono, Shigeo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multivibrator circuit is provided to digitally control an electromagnetic valve adapted to control the supply of fuel and air to each cylinder of an internal combustion engine. - 1 -
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 May 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 15, 1979
Term endedMay 15, 1996
Patent numberCA 1054697 A
Classification (IPC)G05D7/06 +2 more
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.