Patent Yard Sign in
Expired Canadian patentCanada

Frayless frangible connection for fabric and vertical blind system incorporating same

CA 2583684 C · Owner: Graichen, Claus · Inventors: Graichen, Claus

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 vertical blind assembly including at least one vertical blind panel the at , least one vertical blind panel including a plurality of partially opaque louvers, and a plurality of sheer transparent or translucent spacers. Each of the plurality of spacers is disposed between a respective pair of the plurality of partially opaque louvers. A substantially opaque auxiliary louver is disposed behind each one of the plurality of partially opaque louvers. A frangible hinge is disposed between each partially opaque louver and an adjacent spacer. A louver hook is attached to a top edge portion of each partially opaque louver, wherein each louver hook hooks over a top edge of a corresponding …

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

  • Filed October 7, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 7, 2005
GrantedApril 23, 2013
Term endedOctober 7, 2025
Patent numberCA 2583684 C
Classification (IPC)E06B3/12

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedOct 7, 2005Patent grantedApril 23, 2013Term endedOct 7, 2025

Sources & verification

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