Proof of purchase detachable tab
CA 1294923 C · Owner: Olsen, Robert Charles · Inventors: Olsen, Robert Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A carrier device for unitizing a plurality of containers comprising annular bands defining a plurality of apertures generally arranged in ranks and rows. Annular bands defining adjacent pairs of apertures in a given row being integrally connected by webs and bands defining apertures in a given rank being integrally connected by spaced webs. Spaced webs present margins defining spaces. The tab is connected to a marginal portion of one side of the space by non-detachable means and is frangibly connected to a marginal portion of an opposite side of the space by frangible or detachable means.
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
- Granted January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.