Machine and method for inflating and sealing air-filled packing cushions
CA 2476726 C · Owner: Free-Flow Packaging International, Inc. · Inventors: Perkins, Andrew; Reyes, Oliver M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Machine and method for making air-filled packing cushions from a roll of prefabricated film material (11) having a longitudinally extending inflation channel (19) near one edge of the material and chambers (21 22) which , communicate with the channel (19) through laterally extending passageways (23). The film material is fed from the roll (28) to an inflation tube (52) which extends into the inflation channel air is introduced into the chambers , (21 22) through the inflation tube (52) to inflate the cushions and a , longitudinally extending seal (89) is formed across the passageways (23) between the channels (19) and the chambers (21 22) after the cushions are , inflated.
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 February 13, 2003 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2025.
- 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.