Chemical agent monitor and alarm device
CA 1207555 A · Owner: Preston, Jonathan M. · Inventors: Preston, Jonathan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification describes an apparatus for use with a hand-portable chemical agent detector for continuously monitoring an atmopshere for the presence of predetermined chemical agents. The detector is provided with means for ionizing air samples and providing at an output terminal electrical signals representative of the mobility spectrum of ionized chemical vapours produced by the ionizing means. The apparatus is formed with a chamber for supporting and removably enclosing the detector, means for communicating ambient atmosphere to the chamber, electrical circuit means adapted to be detachably connected to the detector output terminal when the detector is positioned in the chamber and …
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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 July 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 2003.
- 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.