Vertical foam wrapping machine and method for wrapping a roll of carbonless paper
CA 2066911 C · Owner: Appleton Papers Inc. · Inventors: Schreiber, Glenn; Iris, Lonnie; Werth, Rex
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical foam wrapping machine can rewrap rolls of carbonless paper having damaged packaging in satellite locations without the need for returning the rolls of paper to the manufacturing facility for rewrapping. The machine includes a lift device with a vertically adjustable arm. Foam wrap and stretch film are positioned on this arm and are fed to the roll of carbonless paper resting on a turntable in front of the lift device. The turntable has a rigid platform upon which the paper sits. This platform is nonmovable relative to the turntable and has a diameter less than the diameter of the roll of paper. In this manner a lower, section of the roll of paper adjacent the lower edge remains …
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 April 23, 1992 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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
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.