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Expired Canadian patentCanada

Coin apparatus for prepay coin telephones

CA 1236232 A · Owner: Quortech Solutions, Inc. · Inventors: Ellis, John G.; Gumb, Beverley W.; Thompson, Joseph

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, In a prepay coin telephone set the amount of coins, held in escrow prior to setting up a call is limited generally by, space considerations. By providing a bypass passage from the escrow unit to the coin collecting box, any coins above a particular total value will pass into the bypass passage. As all the coins passing to the escrow unit will have been counted and valued, it is still, possible to know the total amount of coins deposited. A user can insert more coins than the limit normally set by the conventional escrow unit, for example in preparation for a lengthy or expensive call. - i -

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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 May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 25, 1985
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1236232 A
Classification (IPC)H04M17/02

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedNov 25, 1985Patent grantedMay 3, 1988Term endedMay 3, 2005

Sources & verification

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