Expired Canadian patentCanada
Cmos integrated circuit fan-in logic tree layout arrangement
CA 1292044 C · Owner: Barber, Frank E. · Inventors: Barber, Frank E.; Shoji, Masakazu
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A logic circuit, such as used in a crossbar digital switch containing a multistage fan-in logic tree is arranged in a compact folded layout having a width equal to a single stage of the tree in order to, minimize wiring delays and signal skew.
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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
- Granted November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1988
GrantedNovember 12, 1991
Term endedNovember 12, 2008
Patent numberCA 1292044 C
Classification (IPC)H03K19/08 +2 more
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.