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Expired Canadian patentCanada

Eyeglasses

CA 1339052 C · Owner: Lindberg, Poul Jorn · Inventors: Lindberg, Poul Jorn; Dissing, Hans

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

Eyeglasses, especially rimless eyeglasses the lenses of, which are secured to frame portions of the eyeglasses by means of holding portions which are received in holes or recesses in the lenses, characterized in that the lenses are mounted on holding pintle portions which project straight forwards from the frame, and which are squeezed with a good fastening effect in the holes or recesses.

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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

  • Granted July 29, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 19, 1988
GrantedJuly 29, 1997
Term endedJuly 29, 2014
Patent numberCA 1339052 C
Classification (IPC)G02C1/02

Timeline

Timeline From CIPO dates

198919921995199820012004200720102013Application filedDec 19, 1988Patent grantedJuly 29, 1997Term endedJuly 29, 2014

Sources & verification

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