Respirator filter means for removal of tritiated water
CA 1319115 C · Owner: Mine Safety Appliances Company · Inventors: Thompson, Ronald Edward; King, William Porter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter for a respirator for removal of tritiated water having a housing with fluid inlet and outlet ports. A filter chamber is interposed between and in communication with the inlet and outlet for containing the tritium filter media. A tritium filter media is selected from a particulate activated carbon or a particulate silica gel in which the media has a moisture content of from about 25% to 40% by weight of the media and a particulate distribution size range of from 6 x 20 to 12 x 30.
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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
- Granted June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- 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.