Tube dispenser for flexible sheet material
CA 1331747 C · Owner: Bolz, Hans-Peter · Inventors: Bolz, Hans-Peter; Haenni, Edwin W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser comprising an elongate rigid hollow cylindrical tube including opposed ends and a transverse elongate dispensing slot laterally therethrough at a midpoint along the length thereof. The dispensing slot includes opposed serrated edges with the teeth of each edge overlapping the teeth of the other edge to provide for restricted passage of film bags pulled outwardly through the dispensing slot from the interior of the tube. The opposed ends of the dispensing slot are enlarged and smooth-edged for access to interior bags and cooperation with the serrated edges in providing for projecting leading bag corners. 17
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 August 30, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 30, 2011.
- 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.