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Expired Canadian patentCanada

System and method of renaming data items for dependency free code

CA 1191618 A · Owner: Burroughs Corporation · Inventors: Desantis, Alfred J.; Schibinger, Joseph S.

CIPO record

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

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Abstract From the Canadian patent

A mechanism for a data processor that is adapted to receive strings of object code, form them into higher level tasks and to determine sequences of such tasks which are logically independent so that they may be separately executed. The mechanism makes all memory accesses required by the various tasks and stores those tasks along with corresponding pointers or references to local memory in which the various data items have now been stored. The mechanism employs a symbol translation table in which the tasks are stored in forms of queues along with symbols representing the various references or pointers to local memory. In this manner various data, items can be assigned different symbols or …

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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 August 6, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2002.
  • 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 7, 1983
GrantedAugust 6, 1985
Term endedAugust 6, 2002
Patent numberCA 1191618 A
Classification (IPC)G06F9/38 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJune 7, 1983Patent grantedAug 6, 1985Term endedAug 6, 2002

Sources & verification

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