Cylinder block cylinder bore isolator
CA 2103019 C · Owner: Heater, Thomas John · Inventors: Dysarz, Charles Raymond; Counihan, John Valentine; Heater, Thomas John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An engine cylinder block having a shallow water jacket in either a V-type, in-line or opposed, engine configuration. The engine cylinder block further having an isolation chamber below the shallow water jacket forming a cavity between the cylinder bore walls and the outer engine block wall. Additionally ventilation passages are located between the crankcase and isolation chamber through the upper crankcase plate.
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 November 12, 1993 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2015.
- 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.