Pump
CA 2077582 A1 · Owner: Ericson, Wallace W. · Inventors: Ericson, Wallace W.; Ericson, Steve
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PUMP, Abstract of the Invention, A centrifugal pump having an impeller which is associated with a motor and a drive shaft and that is enclosed within a housing. The housing is mounted in surrounding spaced and non-, contacting relationship with respect to the impeller and drive shaft contains fluid inlet through which fluids are directed by the impeller to an outlet from the housing. Also provided is a pump which operates from remote locations.
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
- Filed September 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2014.
- 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.