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Expired Canadian patentCanada

Electronic postage meter operating system

CA 1265616 C · Owner: Kroll, Paul C. · Inventors: Kroll, Paul C.; Chang, Sung S.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A postage meter system includes a nonvolatile memory and program store coupled to a microcomputer. Postage meter transactional accounting data records are stored in the nonvolatile memory. Each transactional accounting data record includes a header portion having piece count related data and a piece count data field. The most current stored transactional accounting record header includes piece count related data which differs from the piece count data in the piece count field. Other stored transactional accounting records have headers with piece count related data which are the same as the piece count data stored in the piece count field. In this way, the most …

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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 February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 15, 1986
GrantedFebruary 6, 1990
Term endedFebruary 6, 2007
Patent numberCA 1265616 C
Classification (IPC)G07B17/02 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedOct 15, 1986Patent grantedFeb 6, 1990Term endedFeb 6, 2007

Sources & verification

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