Portable flexible bag holder
CA 2003047 A1 · Owner: Johnson, Austin E. · Inventors: Johnson, Austin E.; Johnson, Austin E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A readily assembled and disassembled portable flexible bag holder comprising an annular member having an annular recess formed in its outer peripheral surface and a partially inflated air impervious flexible annular tubular member seated in the annular recess and having an annular contacting relationship therewith. A plurality of arcuate members are provided for contacting a portion of the open end portion of a flexible bag that has been stretched over the annular member and the air impervious flexible annular tubular member. A plurality of clamps are provided to urge each of the arcuate members in radially inward directions to clamp a portion of the open end portion of the flexible bag …
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 November 15, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2011.
- 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.