Methods and apparatus for externally treating a container with application of internal bias gas
CA 2112103 C · Owner: Babacz, Robert J. · Inventors: Babacz, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for externally treating a container by application of internal bias gas. The exterior surface of a hollow container is treated under the influence of an electric field. The electric field is applied through an electrode and an electrically conductive gas inside the container. The electrically conductive gas conducts a potential from the electrode to the inside surface of the container. The apparatus contains a vacuum chamber a tubular, inlet, an oxidizing gas source and organosilicon gas source and vacuum pump.
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 June 17, 1993 and granted September 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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.