Individual package bagger and process
CA 2401733 C · Owner: Lerner, Bernard · Inventors: Cronauer, William M.; Lerner, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for forming individual packages from a web of preopened and interconnected bags one at a time is disclosed. A web is fed along a path of travel from a supply to a load station. A pair of nip rolls are positioned along the path near the load station. A printer is positioned along the path between the supply and the nip rolls. A nip roll drive is provided for rotating the nip rolls selectively and one at a time at a printing rate for the feed of the web when the printer is operating and at a faster feed rate for positioning a bag at the load station when the printer is not operating. A supply station tensioner is provided for tensioning a web along the path such that the printer …
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 September 6, 2002 and granted May 24, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2024.
- 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.