System and method for measurement of traveling webs
CA 1313774 C · Owner: Measurex Corporation · Inventors: Norton, Michael K.; Boissevain, Mathew G.; Anderson, Leonard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A system and method for optically measuring parameters including dry basis weight, basis weight and moisture content of fibrous sheet materials during manufacture without scanning. The system includes means for reflecting modulated light as parallel rays perpendicularly incident upon one surface of a traveling web, and means to detect light transmitted through the web at least at distinct bands of wavelengths. foreign.009/meas
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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
- Granted February 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2010.
- 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.