Apparatus for assessing the stiffness of a sheet
CA 2041189 A1 · Owner: Ncr Corporation · Inventors: Hain, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The invention relates to an apparatus (2) for assessing the stiffness of a sheet (4) such as a, currency note, by measuring the extent and rate of movement of the trailing edge of the sheet (4) away from a feed path for the sheet. Such movement is part of a straightening movement of the sheet (4) upon disengagement of the trailing edge from constraining means (34) when a leading portion of the sheet (4) is in a bent condition.
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 April 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2013.
- 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.