Expired Canadian patentCanada
Ceiling runner attachment system and clip therefor
CA 1098277 A · Owner: United States Gypsum Company · Inventors: Wendt, Alan C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An attachment system, and attachment clip therefor is, disclosed for attaching panel engaging ceiling runners positioned either parallel or perpendicular to air distribution, bar structures and inverted-T runner ceiling supporting structures.
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 31, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 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.
FiledJuly 27, 1978
GrantedMarch 31, 1981
Term endedMarch 31, 1998
Patent numberCA 1098277 A
Classification (IPC)E04B1/38 +2 more
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.