Wall ties
CA 1290165 C · Owner: Lapish, Ernest B. · Inventors: Lapish, Ernest B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In its preferred form the invention comprises a wall tie for binding a masonry or glass 'veneer' wall to a support frame having a first attachment, plate by which it may be fixed to such a support frame and a second, attachment plate by which it may be fixed to such a veneer wall said plates, being linked by connector systems which are substantially inextensible along one axis, but which give freedom of movement of one said plate relative to the other in a plane normal to said axis.
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 October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 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.