Attachment for mounting concrete wall panels on a building
CA 1112071 A · Owner: Butler Manufacturing Company · Inventors: Paton, W. Donald; Steenson, Thomas W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An attachment (10,10') for attaching a precast concrete wall panel (P) to a building in a manner which permits vertical movement of that wall panel (P) relative to building structural elements (12,14). In one embodiment the attachment includes inserts embedded in the wall panel (P) near the top (10) and bottom (10') edges of the upright wall panel (P), a tongue element (120) connecting the top inserts (10) to a building beam (12), or the like and a, clamp (196) attached to the bottom inserts (10') to connect those inserts to a building foundation (14). The inserts (10,10') have slots (90). defined therein in which portions of the tongue (120) and clamp (196) are located to permit the wall …
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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
- 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.