Food packaging tray
CA 1081663 A · Owner: Diamond International Corporation · Inventors: Bixler, Kenneth D.; Reifers, Richard F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
THROW-AWAY ONE-USE TRAY FOR THE PACKAGING OF, EASILY BRUISED FRUIT AND PRODUCE IN CONJUNCTION WITH AN OVERWRAP PLASTIC FILM, IS PROVIDED WISH AN OPEN-WINDOW BOTTOM CONFIGURATION IN WHICH THE BOTTOM RIBS DEFINING THE OPEN WINDOWS ARE APPROXIMATELY 20% GREATER THICKNESS THAN THE SIDE WALLS OF THE TRAY. THE RIB FORM AT THE BOTTOM SERVES THE FUNCTIONS OF STIFFENING THE BOTTOM MORE THAN WOULD RIBS RESULTING FROM DIE CUT OPENINGS, AND CREATING A SMOOTH ROLLED EDGE IN CONTACT WITH THE PRODUCE TO REDUCE CUTTING AND BRUISING.
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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 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.