Adjustable ruffle window shade
CA 2085392 A1 · Owner: Koller, Barbara J. · Inventors: Ohnstad, Jerome; Koller, Barbara J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable width window shade having an adjustable roller assembly and a shade panel which includes top and bottom edge portions and a pair of side portions. One of the side portions includes a plurality of lines of weakness which may be selectively torn away to provide an adjustable width portion. A decorative member is disposed along the bottom portion of the shade panel and is removably attached to the adjustable width portion of the shade panel. The decorative member can be readily adjusted as the width of the shade panel is adjusted.
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 December 15, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.