Method and apparatus for producing a plurality of sequentially arranged edge contoured slats
CA 2176884 C · Owner: Berntsson, Peter · Inventors: Berntsson, Peter; Gawell, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and apparatus for providing a plurality of sequentially arranged edged contoured slats for use in a blind. A strip of material 10 is provided lengthwise into the slat making machine. It passes through a forming unit 6 where it is cambered into an accumulator 8 where any excess is held through a position encoder 12 and over a collision detector 14. Edge contours are then cut into the strip material if they are not already pre-provided. The positions of any edge contours are detected by a sensor 18 which provides relevant information to a CPU 40. On the basis of this information and other pre-provided information on the type of blind being made guide holes …
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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
- Filed May 17, 1996 and granted July 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2018.
- 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
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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.