Packaging strap coil and method for producing the same, packaging strap coil unit and packaging machine equipped with strap coil reel
CA 2504879 A1 · Owner: Oba, Kazuyuki · Inventors: Marutani, Tetsuya; Usuda, Yukou; Tajika, Satoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to: a packaging strap coil and its production method, wherein the innermost strap end is securely fixed to prevent unwinding thereof and the strap can be smoothly drawn out to the innermost end for strap-packaging of an item; a packaging strap coil unit which prevents deformation of the strap coil; and a packaging machine. The strap coil 11 comprises a number of layers of a resin packaging strap 11a wound helically and corelessly around a hollow 11b defining the axis of the strap coil 11. The strap 11a is made of a thermoplastic resin at least on its external surface. In the strap coil 11 a plurality, of perforations 11d are pierced in the vicinity of an …
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
- Filed July 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2021.
- 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.