Egg carton
CA 1071155 A · Owner: The Dow Chemical Company · Inventors: Burkett, Francis L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a foamed thermoplastic packaging structure designed to package eggs and the like. The package includes a body section and the body has a plurality of downwardly directed deep egg receiving pockets. All adjacent pockets are separated by at least one flexible thin-walled separator which prevents substantial contact and which provides resilience and flexibility between the eggs positioned in the pocket. The separator is formed by upwardly directed extension walls formed continuously with and extending upwardly from the pocket walls of the adjacent pockets. Each of the extension walls terminates in individual upper end walls and the walls, of the pockets have individual …
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 February 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 1997.
- 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.