Expired Canadian patentCanada
Electrical current breaker for fluid stream
CA 1071120 A · Owner: Diamond Shamrock Corporation · Inventors: Peters, Edward, J.; Zeman, Wayne P.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for interrupting the passage of electrical current along a mixed stream of gas and liquid.
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 February 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 1997.
- 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—
GrantedFebruary 5, 1980
Term endedFebruary 5, 1997
Patent numberCA 1071120 A
Classification (IPC)B01D45/04 +1 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.