System, method, and apparatus for detecting breach of exposure protection equipment
CA 2457987 C · Owner: Microteq Llc · Inventors: Mihaylov, Gueorgui Milev; Kirollos, Kirollos S.; Truex, Bryan I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method, system, and apparatus are provided for use with exposure protection systems or equipment such as respiratory protection devices. One system is provided for detecting a breach of an exposure protection device by an amount of a target substance. The system includes an exposure protection device that isolates a protected environment from an external environment potentially including a target substance. The device includes a protective covering that includes a substantially transparent window. The system also includes a detector or detector element for indicating the presence of the target substance. Such a detector is capable of producing a visually observable indication upon …
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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
- Filed February 18, 2004 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2026.
- 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
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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.