Air filter and method for reducing the amount of microorganisms in contaminated air
CA 2094008 A1 · Owner: Schuller International, Inc. · Inventors: Coombs, Garth; Bastidas, Isidro Vasquez, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract Described is a method for reducing the amount of microorganisms in contaminated air comprising the steps of: providing a fiberglass containing air filtration media containing an antimicrobially effective amount of an inorganic antimicrobial agent; and forcing the contaminated air through the air filter thereby reducing the amount of microorganisms in the contaminated air. The invention further pertains to media for reducing the amount of microorganisms present in contaminated air as well as methods of applying the inorganic antimicrobial agents to the media and for the media to be present in a rigid air filter.
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 April 14, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 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.