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Expired Canadian patentCanada

Market research booklet

CA 1213922 A · Owner: Burke Marketing Services, Inc. · Inventors: Kim, Chang J.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A product opinion research booklet having the following in sequence: a cover sheet, plural folded pages having their free edges bound to the cover sheet and a summary sheet. The folded pages have on the, inside, an advertisement on one surface and questions relating to the product advertised on the facing surface. The booklet structure, together with the order of presenting the information, requires the respondent to answer questions in the sequence desired by the party making the opinion research survey.

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 November 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 1984
GrantedNovember 12, 1986
Term endedNovember 12, 2003
Patent numberCA 1213922 A
Classification (IPC)B42D11/00 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedSep 11, 1984Patent grantedNov 12, 1986Term endedNov 12, 2003

Sources & verification

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