Filter arrangement
CA 1136070 A · Owner: American Air Filter Company, Inc. · Inventors: Hancock, Terence M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter arrangement including a venturi housing carried within a tubular filter by a flexible attachment ring at one end of the filter removably securing the filter in the aperture of an apertured plate member in a gas filtration system. The outermost diameter of the housing is slightly less than the diameter of the aperture to accommodate withdrawal of the housing from either side of the plate attendant to installation and removal of the filter arrangement.
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 November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- 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.