Patent Yard Sign in
Expired Canadian patentCanada

Antenna structure

CA 1211209 A · Owner: Singer Company (The) · Inventors: Bogar, Steven M.; Klopach, Robert T.

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 two dimensional folded dipole antenna structure suitable for use in an antenna system for an article of furniture. The antenna structure is designed for the FM band and utilizes 1/4" wide electrically conductive element in an arrangement contained within a 19" by 12" rectangle that is readily incorporated in many articles of furniture.

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 September 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 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.
FiledMarch 8, 1984
GrantedSeptember 9, 1986
Term endedSeptember 9, 2003
Patent numberCA 1211209 A
Classification (IPC)H01Q9/26 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedMarch 8, 1984Patent grantedSep 9, 1986Term endedSep 9, 2003

Sources & verification

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