Method and apparatus to stretch wrap an object in plastic film
CA 1138317 A · Owner: Karpisek, Ladislav Stephan · Inventors: Karpisek, Ladislav S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus to stretch wrap an object in plastic film, the method comprising the steps of locating a length of elastically stretchable plastic film tube on a holder and expanding the holder to stretch the tube to a size enabling the tube and the holder to be passed over the object to be wrapped and at the same time stripping the tube off the holder so the tube can contract and elastically embrace the object.
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 December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- 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.