Proof and wind/rain resistant assembled blind
CA 2060715 A1 · Owner: Chen, Chih-Tsung · Inventors: Chen, Chih-Tsung; Chen, Chih-Tsung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A burglarproof and wind/rain resistant assembled blind including a fixed guide rail two sides of which are respectively disposed with dove-tail rails and, multiple arch support bases formed with dove-tail lugs which are fitted on the fixed guide rail side by side the support base being formed with a bearing for a lower connector of a slat to insert therein, two T-shaped grooves being disposed on inner side of the top of each arch support base for a U-shaped waterproof strip to extend therethrough, the top of the strip being formed with circular holes at equal intervals for the shaft rods of the connector to insert thereinto the shaft rod, extending downward to engage with a small gear …
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 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 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.