Equipment for sampling and work-up for analysis of pah and other organic compounds, and hydrogen fluoride and sulphur oxides
CA 2104409 C · Owner: Nagy, Kalman · Inventors: Bergli, Knut; Kolderup, Herman; Foosnaes, Trygve
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns equipment, for sampling and processing for analysis of PAH and other organic, compounds as well as hydrogen, fluoride and sulphur oxides in air and in gas in production, equipment. The equipment comprises a layered adsorption device 1 in, which the adsorbents are dry. During sampling the adsorption device 1 is connected at its upper, end to a probe 8 which is brought into contact with the object to be, sampled and connected at its, lower end to a gel box 10 a, pump 9 and a gas clock 12 in, series. After the sampling the, adsorption device 1 may be, connected directly to the extraction apparatus 11 for the, processing of the sample.
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 August 19, 1993 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 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.