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Expired Canadian patentCanada

Telephone connection to a nearby dealer

CA 2054505 C · Owner: Wegrzynowicz, Carol Ann · Inventors: Wegrzynowicz, Carol Ann

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

Abstract, This invention relates to an arrangement for selecting a local dealer out of a large group of dealers for completion of an 800 number. The caller is firstconnected to a toll switching system. That system sends a query to a first database using the 800 number and the caller's Numbering Plan Area (NPA) code. The first database responds with a routing number which is used to route a second query toone of a plurality of second databases. The second query uses the routing numberand the caller's NPA plus office code to access the second database and to obtain the telephone number of a local dealer. The telephone number is returned to the tollsystem for completing the call. …

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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

  • Filed October 30, 1991 and granted February 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2013.
  • 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 30, 1991
GrantedFebruary 15, 1994
Term endedOctober 30, 2011
Patent numberCA 2054505 C
Classification (IPC)H04Q3/42 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedOct 30, 1991Patent grantedFeb 15, 1994Term endedOct 30, 2011

Sources & verification

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