A bale, an apparatus and a method for the wrapping of a bale in two crossing wrapping layers applied in overlapping helical turns
CA 2107342 C · Owner: Soderberg, Staffan · Inventors: Soderberg, Staffan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for packaging bales with strips of plastic packaging film in which a, bale is rotated about a generally horizontal axis and when appropriate, about, a generally vertical axis and wherein film is taken from a film magazine spaced from the bale and wrapped around the bale in successive turns while maintaining the film under tension, and wherein the film in each turn of film around the bale extends generally parallel with and transversely to the horizontal axis. The method is mainly characterized in that the bale is then wrapped with a further wrapping of film and in that successive turns of this, further wrapping cross-over those parts of the turns of the underlying film which extend …
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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 April 8, 1992 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.