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Expired Canadian patentCanada

Electronic maintenance support work station

CA 1299760 C · Owner: Matheny, Stephen E. · Inventors: Matheny, Stephen E.; Calloway, Jack D.; Holzer, Raymond F.

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

29 53,570, ABSTRACT OF THE DISCLOSURE An electronic maintenance support work station employs a text screen and graphics screen on which text records and part graphics are displayed. The user can sequence through various levels of hierarchy of the product structure as a search is made for a needed part. An item activated on the text screen is automatically targeted on the graphics screen. Part detail information is presented to facilitate decision making when an order point in the search is reached. Direct part or stock number entries can also be entered if the user desires to bypass a search.

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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 April 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 1987
GrantedApril 28, 1992
Term endedApril 28, 2009
Patent numberCA 1299760 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedSep 17, 1987Patent grantedApril 28, 1992Term endedApril 28, 2009

Sources & verification

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