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Expired Canadian patentCanada

Process and device for producing a dial

CA 2197969 C · Owner: Wika Alexander Wiegand Gmbh & Co. · Inventors: Schafer, Klaus; Schneider, Alfred

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A process and a device are described for production of a dial by imprinting a blank with an imprint which enable cost-effective production of very high quality even with small quantities. Data entered via an input device are delivered to a data management device which positions the dial pattern on a printing master defined by the data entered. If a pattern is not stored in memory a new pattern is requested from a design device and delivered to the data management device which enters the printing master into an output device. The output device generates the printing master according to drawing data and outputs it to a printer which creates a prefixed toner image on a carrier sheet. The blank …

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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 February 19, 1997 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 19, 1997
GrantedDecember 18, 2001
Term endedFebruary 19, 2017
Patent numberCA 2197969 C
Classification (IPC)G12B11/02 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 19, 1997Patent grantedDec 18, 2001Term endedFeb 19, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.