Device for non-thermal excitation and ionization of vapors and gases
CA 2115679 C · Owner: Rohrer, Ernst · Inventors: Rohrer, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The excitation device comprises a plurality of rod-like electrode elements. Each electrode element is enclosed by a chemically and thermally stable protective casing, which can be exposed to high electric fields. The electrode elements are held in vertically extending crosspieces. This results in a setup of several modules each of which consists of a plurality of electrode elements and two cross pieces. The electrode elements of each module are electrically connected to a conductive bar and have equal potential. Consecutive modules are alternately connected to ground or phase respectively. The described cell is substantially insensitive to the formation of condensates, such that it is …
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 February 15, 1994 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2016.
- 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.