Method of joining curvilinear structural insulating panels and the likeand improved joined panel structure
CA 1281161 C · Owner: Hopper, Thomas P. · Inventors: Hopper, Thomas P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of cutting curvilinear panels with ellipsoidal cuts and joining the abutted edges of the same with a slight gap therebetween by batten-like surfaces overlapping the edges on both the outer and inner cover sheets of the panel and sealing the gap therebetween--the batten-like surfaces being preferably bonded layers, and the method being adapted to accomodate complicated joining seams bends and curves.
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 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2008.
- 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.