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Expired Canadian patentCanada

Zipper-type window for homes

CA 1071475 A · Owner: Papadakis, Edythe A. · Inventors: Papadakis, Edythe A.

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

Zipper-Type Window For Homes ABSTRACT OF THE DISCLOSURE, The invention is an improved insulating or storm window application for windows of homes. The zipper-type window of this invention provides an easy and quick method of installation or removal of the insulating portion and in, addition, provides the beholder an attractive and decorative enclosure when viewed from the interior of the house. The insulating portion may be removed during portions of the year and the decorative interior aspect is not altered. The zippertype window of this invention is insulation for both summer and winter conditions.

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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 February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 12, 1980
Term endedFebruary 12, 1997
Patent numberCA 1071475 A
Classification (IPC)E06B3/30 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedFeb 12, 1980Term endedFeb 12, 1997

Sources & verification

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