Quad channel unit health registers
CA 2083732 C · Owner: Hauschild, Mark Ernest · Inventors: Hauschild, Mark Ernest
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A channel unit for providing service to four channels in a digital loop carrier transmission system. The channel unit includes a first register that stores information related exclusively to a first and second channel and a second register that stores information related exclusively to a third and fourth channel. The channel unit also includes a system for taking a logical OR function of the bits in the second register and writing the result into another portion of the first register.
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 25, 1992 and granted June 9, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2014.
- 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.