System and a process for recording cartographic information on a videodisk
CA 2002303 C · Owner: Mosaic Gl Inc. · Inventors: Gagnon, Romain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure herein describes a system and a process for recording cartographic information on a videodisk; it comprises the steps of converting into digital raster format printed information displayed on geographic maps and charts; computer processing the converted information to create video frames; converting each raster frame into a video composite signal to form an analog frame; recording each analog frame onto an analog magnetic tape; and producing a videodisk containing the information obtain from the tape.
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 November 6, 1989 and granted May 10, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2011.
- 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.