Vacuum packaging method and apparatus
CA 2018455 C · Owner: Brembilla, Sandro · Inventors: Romani, Mario; Brembilla, Sandro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packaging method and apparatus employ (i) a thermoforming station 6 through which a support film web 4 is advanced by means of an endless chain carrying clamps 16 followed by (ii) a loading station in which product articles are inserted into the trays formed by the thermoforming station, and (iii) a film-combining station II at which a covering film 3 is stretched longitudinally and then applied in its stretched configuration to the support web 4 (with or without the above-mentioned thermoformed trays) and is clamped thereto for subsequent vacuum skin packaging of the product articles between the support web 4 and the upper film 3 by a process similar to-that disclosed in EP-A- 0270208. , …
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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 June 7, 1990 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2012.
- 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.