Metal door assembly and method of production
CA 1052182 A · Owner: Johnson Sheet Metal Works Corp. · Inventors: Hull, George S.; Imperial, Raymond E.; Schultz, Edward G. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A formed sheet metal rectugular-shaped frame is positioned between two sheet metal panels which may be embossed to provide the appearance of small wood panels. The frame include an elongated frame member for each edge of the doors and each frame member has two outwardly facing parallel spaced channel portions integrally connected by a center web portion. Extruded plastic trim members cover the top and slide frame members and include longitudlinal extendting hook-shaped leg portions which project into the channel portions and snap-fit onto inwardly formed edge portions of the side panels. A foam Insulation material is expanded between the side panels and also serves to space the side panels …
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
- Granted April 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 1996.
- 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.