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Canadian application, no grantCanada

Viscous heater

CA 2230450 A1 · Owner: Moroi, Takahiro · Inventors: Mori, Hidefumi; Moroi, Takahiro; Okabe, Takanori

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A viscous heater includes a housing, a rotor a silicone oil working as a, viscous fluid a radiator region, and circulating water working as a circulating fluid. The rotor is accommodated rotatably about a rotary axis in the housing and includes, a shearing member. The shearing member is formed so as to surround the rotary axis, and rotates along a rotary locus as the rotor rotates. The radiator region is defined in the housing, and includes a first radiator chamber and a second radiator chamber. The first and second radiator chambers are disposed so as to interpose the rotary locus of the shearing member therebetween. The viscous fluid is accommodated in the housing. The circulating fluid …

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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 February 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 25, 1998
GrantedNo grant recorded
Term endedFebruary 25, 2018
Patent numberCA 2230450 A1
Classification (IPC)F24J3/06 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 25, 1998Term endedFeb 25, 2018

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.