Method for making a multicompartment thermoplastic bag
CA 2490698 A1 · Owner: S.C. Johnson Home Storage, Inc. · Inventors: Dawkins, Richard R.; Price, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a multicompartment reclosable thermoplastic bag (10) having at least two compartments (15, 16) is disclosed. Each compartment (15 16) has , a top, a bottom (17, 18), two side edges and two opposing sidewalls (11, 12, 13 14) joined at the side edges and the bottom. Each compartment (15 16) has , a closure (31, 32) across the top thereof which are arranged back-to-back and , aligned. The compartments (15 16) are attached together proximate the tops of the compartments, and the bottoms (17, 18) of the compartments are free from being attached to each other. Processes for making such bags from one or more webs are also disclosed.
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 June 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.