Drywall-trimming article having curved surface covered with discrete fibers
CA 2219695 C · Owner: Koenig, Joseph M. Jr. · Inventors: Koenig, Joseph; Koenig, Joseph M. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For trimming a drywall corner, a drywall-trimming article has an elongate portion and two flange portions which are extruded unitarily, with the elongate portion from polyvinyl chloride. The elongate portion has an arcuate profile. Each flange portion has an array of apertures. One of the convex and concave surfaces defined by the central portion is covered substantially with discrete fibers which adhere to the substantially, covered surface but which do not cover the remaining surfaces of the central portion and of the flange portions. Such adhering fibers facilitate application of a coat of paint and texturization of the coat of paint over the substantially covered surface without …
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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 October 30, 1997 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2019.
- 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.