Profiled sheet for building purposes
CA 1297255 C · Owner: Kero, Ernst · Inventors: Kero, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a profiled sheet (3) for building purposes, especially roofing and facade sheet said sheet, comprising a normal profiling and having in addition at least, in certain sections, a corrugated microprofiling (4) deviating from the normal profiling. The microprofiling exhibits flattened and/or pressed-in areas in its crest valley and/or, flank sections resulting in that the thickness of the profiled sheet varies in a direction transversely of the longitudinal direction of the microprofiling which agrees with the longitudinal direction of the normal profiling. The flattened and/or pressed-in areas extend in the longitudinal direction of the microprofiling.
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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
- 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.