Plastic grocery bag having draw-tape closure and flat bottom
CA 2077779 A1 · Owner: Boyd, Dana Melvin · Inventors: Boyd, Dana Melvin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermoplastic bag for carrying groceries has a drawtape and a bottom closure which includes gusset panels which permit expansion to a flat bottom. The draw-tape and flat bottom obviate the "tipping" problem for grocery bags. A divider panel separates the bag into two compartments in which different types of groceries can be loaded.
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 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2014.
- 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.