Formation of laminates
CA 1269313 C · Owner: Beckett Technologies Corp. · Inventors: Beckett, Donald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unique laminate suitable for formation into packages for the microwave heating of foodstuffs is provided. Metallized polymeric film is selectively demetallized to provide discrete metallized regions the patterned film is laminated with outer stabilizing layers, for example, paper, and the laminate formed into a package. When used for heating a foodstuff the, discrete metallized region is located adjacent the foodstuff and on the opposite side of the foodstuff from the source of microwave energy. The metallized region results in conduction heat being applied to the foodstuff as well as microwave heating.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.