Automatic interlayer trimming
CA 2021983 C · Owner: Byers, Frank J. · Inventors: Byers, Frank J.; Hostler, Jonathan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic interlayer trimming assembly is provided with an abrasive belt that contacts the edge of a windshield assembly after lamination to remove any interlayer that has extruded out from the windshield edge during lamination. The belt is supported and advanced by a plurality of rollers and the windshield edge is moved in the same direction as the advancement of the belt. In addition, the belt may oscillate in a direction perpendicular to the belt advancement to help remove the interlayer.
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 July 26, 1990 and granted March 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 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.