Packaging structure
CA 2248601 A1 · Owner: Geddes, Daniel J. · Inventors: Whitmore, Rebecca E.; Bowers, Debra D.; Kuchenbecker, Morris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sandwich packaging structure for use in wrapping a sandwich includes a sheet of paper wrap that is to be wrapped around the sandwich to enclose the sandwich, and a piece of support material having a greater rigidity than the sheet of paper wrap. The support material is secured to the sheet of paper wrap and is adapted to be folded with respect to the sandwich positioned on the packaging structure to impart structural rigidity to the wrapped sandwich. The support member is preferably in the form of a paperboard frame. The support member can be an elongated strip that is adapted to extend across opposite sides of sandwich as well as the top and/or bottom of the sandwich Alternatively 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 September 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2020.
- 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.