Convenience packaging
CA 1328835 C · Owner: Weirton Steel Corporation · Inventors: Saunders, William T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rigid sheet metal substrate can body (50) and end closure (92) provides dependable tamper-evident and abuse-resistant packaging for shipment and long shelf-life storage without freezing; and in addition, provides for direct heating in the can body after opening, including microwave heating, for serving and/or eating directly from such disposable container. The can body is shaped by draw processing with diminishing cross sectional areas in proceeding height-wise from open end (61) to closed bottom wall (56).
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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.