Electronic copyright royalty accounting system using glyphs
CA 2129075 C · Owner: Xerox Corporation · Inventors: Daniele, Joseph J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a system for utilizing a printable yet, unobtrusive glyph or similar two-dimensionally encoded mark to identify copyrighted documents. Upon attempting to reproduce such a document the glyph is detected, decoded and used to accurately collect and/or record a copyright royalty for the reproduction of the document or to prevent, such reproduction. Furthermore the glyph may also include additional, information so as to enable an electronic copyright royalty accounting system, capable of interpreting the encoded information to track and/or, account for copyright royalties which accrue during reproduction of all or portions of the original document.
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 July 28, 1994 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2016.
- 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.