Glass sheet positioning device for use in glass thermal treatment setups
CA 2012890 C · Owner: Harle, Gerard-Jean · Inventors: Petitcollin, Jean-Marc; Harle, Gerard-Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the positioning of a sheet of glass in relation to dishing tools and/or other thermal treatments during the course of a treatment in which the sheet of glass (2) is heated above its softening point and run flat on a conveyor (3) and stopped under an upper element (8) normally with a shape against which it is pressed then released on a lower element (10) which is used to continue shaping as required and/or the sheet of glass is transferred to another device namely a device for cooling by thermal quenching. The position of the sheet of glass (2) in relation to the upper element (8) and/or the position of the upper element (8) in relation to the lower element (10) are …
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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 March 22, 1990 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2012.
- 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.