Selectively closeable plastic film bag
CA 2297516 C · Owner: Pappas, George · Inventors: Pappas, George; Huseman, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A selectively closeable plastic film bag is formed with front and rear plastic film panels. The bag includes a bottom and side edges and each of the front and rear panels include a top, edge whereat an opening is provided into the bag cavity. An adhesive strip is provided on the, inside surface of the front or rear panels extending longitudinally thereacross between the bag, side edges. The adhesive strip is placed in a pattern extending at an angle upwardly from each, of the side edges to a generally linear portion therebetween. A release liner is provided, between the front and rear panels and is located partially over or above the adhesive strip at the, side edges and below the …
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 January 31, 2000 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2022.
- 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.