Method of producing automotive body
CA 2013998 C · Owner: Campbell, James Richard · Inventors: Campbell, James Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed in which a semi-finished automotive body is passed through an oven placed immediately after a metal finishing stage, to cure hot melt strip and solder used in preceding stages, before the body is subjected to the application of liquid substances such as phosphate rinse or E-coat. The method improves the quality of finish by avoiding the release of tiny particles into the bath of the paint application device and from there to the surface of the body being finished.
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 May 7, 1990 and granted November 2, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2012.
- 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.