Cartridge heater system
CA 2200353 C · Owner: Lacombe, Thomas David · Inventors: Lacombe, Thomas David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A linear cartridge heater has a cylindrical heater element and an integral concentrically-mounted current collector element positioned within a fire retardant chlorinated PVC enclosure. The enclosure includes a unitarily-molded mounting flange for sealingly mounting the cartridge heater a unitarily-, molded special "tee" section interconnected with the mounting flange and an , alignment bushing. The alignment bushing is interconnected with the special "tee" section by a pipe section to form a fluid flow path between the alignment bushing and the special "tee" section. The special "tee" section provides an outlet for discharging heated water and a mounting place for a first thermistor …
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 June 15, 1995 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2017.
- 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.