Method of and apparatus for measuring planarity of metal strip
CA 2283192 C · Owner: Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh · Inventors: Noe, Andreas; Noe, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The planarity of a strip, especially a metal strip is measured in a measurement zone in which the tension of the strip has been reduced in a targeted way by braking the strip. The braking force should be practically equal to the strip tension.
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 September 23, 1999 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2021.
- 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.