Process and arrangement for writing binary data onto glass masters
CA 2233884 C · Owner: Redder-Pohlmann, Artur · Inventors: Gunther, Christian; Redder-Pohlmann, Artur; Martens, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system design and the components incorporated therein for storing intelligence, control and accompanying data general, components for the control of the data flow of all components included in the system design as well as special components for the data flow and process control of interface systems for laser beam recorders (LBR). The system design enables a processing of intelligence, control and accompanying data independent of the physical music and data carriers within the premastering sector and the production of glass intermediate storage units (mastering area) by CD plants. All types of data are stored in on-line mass storage units and transferred automatically into the respective …
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 3, 1997 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 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.
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.