Non-coatable drywall finishing system
CA 2234875 C · Owner: Smythe, Timothy D. Jr. · Inventors: Smythe, Timothy D. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drywall finishing system apparatus and method used to finish seams and corners in modern drywall construction. Interior and exterior flex-trim pieces are made having flanges (1) with an outer surface (2) prepared to directly receive paint or texture. These pieces can be supplied in standard lengths or on rolls. The flanges are scored (7) or grooved (8) to fold to fit into drywall seams. To use the pieces, the drywaller simply applies wet drywall mud to the seam and presses the piece into position. The optionally tapered or beveled edges (3) are then "killed" with a wide blade tool. When the mud dries, the piece is ready to receive paint or texture without sanding. It is possible …
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 October 16, 1996 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2018.
- 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.