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Expired Canadian patentCanada

Methods and apparatus for initiating wireless messages

CA 2209411 C · Owner: Rochkind, Mark Meier · Inventors: Rochkind, Mark Meier

CIPO record

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Abstract From the Canadian patent

A communications system allows special messages to be transmitted to a wireless device subscriber if certain conditions are met. Identification information authenticating the sender may be sent using an originating device such as a personal computer with a modem. A location information generating device such as the ANI generator in a telephone end-office connected by physical telephone wire (local loop) to the computer generates location information. The identification information and location information are provided to a message platform. The message-platform establishes time of day and compares sender identification information originating device location information and time of day …

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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 July 2, 1997 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 2, 1997
GrantedApril 16, 2002
Term endedJuly 2, 2017
Patent numberCA 2209411 C
Classification (IPC)H04L67/52

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 2, 1997Patent grantedApril 16, 2002Term endedJuly 2, 2017

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