Method and apparatus for forming a slice of a food item having a heat tack seal
CA 2129668 C · Owner: Meli, Vincent A. · Inventors: Meli, Vincent A.; Shaft, David L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method are provided for forming a package with heat tack seals for a slice of a food item. A web of thermoplastic material is first formed into a tubular arrangement (21) with a longitudinal heat tack seal. To form the tubular arrangement (21), means (16) are provided for folding a continuous web of thermoplastic material into a tube and for continuously forming a heat seal along the longitudinal face of the folded web. The food item which has been formed into a soft mass is then, inserted into the tubular member and the tubular member is flattened to form a thin film tube. Means (30) are provided for forming a heat tack cross-seal which is disposed substantially transverse …
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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
- Filed November 16, 1992 and granted April 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2014.
- 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
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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.