Expired Canadian patentCanada
Movable load bar with automatic hooks
CA 1189471 A · Owner: Butler Manufacturing Company · Inventors: Bomberger, Arthur L.; Johnson, Claris E. Jr.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A load bar is movably supported from overhead support equipment and has grabbing hooks thereon which are adaptable to support loads having a wide variety of shapes and/or sizes.
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 June 25, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 15, 1983
GrantedJune 25, 1985
Term endedJune 25, 2002
Patent numberCA 1189471 A
Classification (IPC)B66C1/18
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.