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Expired Canadian patentCanada

Risc computer with unaligned reference handling and method for the same

CA 1293331 C · Owner: Mips Technologies, Inc. · Inventors: Riordan, Thomas J.; Hansen, Craig C.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In a RISC device a set of four instructions are provided which allow either the loading or the storage of an unaligned reference. The instructions are overlapped to reduce the overall execution time of the device. A circuit is also provided for executing the instruction set.

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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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 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.
FiledDecember 23, 1987
GrantedDecember 17, 1991
Term endedDecember 17, 2008
Patent numberCA 1293331 C
Classification (IPC)G06F9/38 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 23, 1987Patent grantedDec 17, 1991Term endedDec 17, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.