Three-level stacking container
CA 1065778 A · Owner: Phillips Petroleum Company · Inventors: Carroll, James C.; Johnson, Lewis T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A three-levle stacking container adapted to stack within a lower container of like constructrion in a low-level stack positions or an intermediate-stack position, or stack on said lower container in a high-stack position depending upon the orientation of said upper container with respect to said lower container. Opposing first and second wall structures of said container comprise bar members which extend in an upwardly direction between a lower border flange and an upper rim. Said bar members are arranged such that the bar members of an upper container parallel the bar members of a lower container when said upper container is stacked within said lower container.
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 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
- 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.