Package for demolding embossed butter and margarine
CA 1069757 A · Owner: Peters, Leo · Inventors: Peters, Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package of butter or margarine which is molded with multi-cubic dimensioned embossments permits the contents of the package to be demolded within the temperature range of 38° to 48°F without damaging the embossments. The package comprises a film-sheet within the thickness range of 0.005 to 0.20 inch which is thermoformed into a single-walled, unlined cup-like cavity and butter or, margarine is flow filled into the cavity. The side wall of the cavity has an inward taper of an angle no less than 5° in non-embossed portions of the side wall. Peaks of the embossed surface have radii 01° no less than 1/32 inch and angles of no less than 20°.
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 January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 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.