Bulk storage bag with integral lifting devices
CA 2111623 A1 · Owner: Cavenagh, Edward J. · Inventors: Cavenagh, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A conventional bulk storage bag has a pair of sleeves formed on the underside of the bag base each by a fabric strip stitched to the underside along two spaced stitch lines. Within the sleeve is inserted an arch shaped insert member extending along the full length of the sleeve from the front edge to the rear edge of the base. The arch shaped insert has a width so that it cooperates with the sleeve in a structural arrangement to hold an area underneath the arch and above a tension portion of the sleeve open for receiving the fork of a fork lift truck for lifting of the 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 December 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2015.
- 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.