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Expired Canadian patentCanada

Electronic price labels

CA 2252184 C · Owner: Berman, Robert M. · Inventors: Goodwin, John C. Iii; Forsythe, Donald L.; Berman, Robert M.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An electronic price label system including groups of electronic price labels (22A), an apparatus for grouping electronic price labels (EPLs) (22A) to form an electronic sign and a method of managing the groups which facilitate group definition, assignment of EPLs (22A) to groups assignment of, items to EPLs (22A), and assignment of prices to items are, disclosed. The apparatus includes a frame member (222) which defines a plurality of bays (226) arranged for containing the EPLs (22A), a product description sheet (224) mounted to the frame member (222) including apertures (279) for exposing displays within the EPLs (22A), and a product description sheet holder (223) for retaining the product …

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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 October 29, 1998 and granted March 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.
FiledOctober 29, 1998
GrantedMarch 4, 2003
Term endedOctober 29, 2018
Patent numberCA 2252184 C
Classification (IPC)G09G5/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedOct 29, 1998Patent grantedMarch 4, 2003Term endedOct 29, 2018

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.