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Expired Canadian patentCanada

Method and apparatus for performing transactions in a stateless web environment which supports a declarative paradigm

CA 2308801 C · Owner: Jacobs, Lawrence · Inventors: Anand, Mala; Adunuthula, Seshu; Jacobs, Lawrence

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Abstract From the Canadian patent

A method and system for processing multiple-request transactions in a stateless, environment is provided. A cartridge execution engine (228) intercepts browser messages, directed to a cartridge. The cartridge execution engine (228) determines whether the browser, messages are associated with transactions. If it is determined that browses messages are, associated with transactions then the cartridge execution engine (228) sends transaction, control messages to a transaction manager (606). In addition the cartridge , execution engine, (228) sends operation messages to the cartridge. The cartridge then performs the operations, specified in the operation messages. In response to the …

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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 27, 1998 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2020.
  • 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 27, 1998
GrantedDecember 10, 2002
Term endedOctober 27, 2018
Patent numberCA 2308801 C
Classification (IPC)G06F9/46 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedOct 27, 1998Patent grantedDec 10, 2002Term endedOct 27, 2018

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