Method and apparatus for the vertical manufacture of sandwich structuralelements
CA 1295465 C · Owner: Kihlberg, Harry · Inventors: Jilken, Leif; Backlund, Jan; Kihlberg, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for manufacturing so-called sandwich structural elements in laminated materials, where a core is provided with covering layer on at least one side. The core in the form of a solid or expandable is advanced from above and downwards in a substantially vertical path, and the covering layer or layers are pressed against, and joined to the core during continued vertical advance thereof from above and downwards.
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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 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.