Patent Yard Sign in
Expired Canadian patentCanada

Curtain wall stud slide clip

CA 1231217 A · Owner: Unimast Incorporated · Inventors: Balinski, Henry A.; Slager, Richard E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Title, CURTAIN WALL STUD SLIDE CLIP, Abstract of the Disclosure: A clip for connecting a curtain wall stud to the load bearing framework of a building is provided with detents so that the clip may be pushed onto the stud and does not have to be supported by hand while it is being welded to the framework.

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 January 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 11, 1984
GrantedJanuary 12, 1988
Term endedJanuary 12, 2005
Patent numberCA 1231217 A
Classification (IPC)E04B2/00 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedDec 11, 1984Patent grantedJan 12, 1988Term endedJan 12, 2005

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.