Tensionable window covering
CA 2108357 A1 · Owner: Schon, Siegfried Joachim · Inventors: Schon, Siegfried Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Window covering (1) at least provided with a first beam (3) connected to a window recess in addition to a second beam (4) and one or more cord members (2) tensioned therebetween for supporting and guiding a covering between the first and second beam wherein, at least one beam can be carried by means of a tensioning means from an active position, in which the or each cord (2) is tensioned, into a second position in which the cord (2) is slackened and , vice versa, whereby the window covering is easily removed in order for instance to clean the glass plate arranged in the window recess.
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 February 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2015.
- 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.