Spreadable material package with spreader
CA 2022435 C · Owner: Land O'Lakes, Inc. · Inventors: Campbell, Rolf W. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spreadable material package includes a first and a second sheet joined together to form a chamber for holding the spreadable material. The package includes a spreader portion at one end that is in flow communication with the chamber so that spreadable material can flow from the chamber to the spreader portion. The package includes a stiffening portion having spaced apart indentations for providing a stiffening effect to the spreader portion.
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
- Filed August 1, 1990 and granted September 13, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2012.
- 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.