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Canadian application, no grantCanada

Constructing a user interface based on a relationship model

CA 2241876 A1 · Owner: Thomas, David Andrew · Inventors: Knowles, Nicholas; Thomas, David Andrew; Mcguire, Kevin

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

In most object-oriented languages, the relationships are buried deep in the implementations of the, classes. That is relationships, even if described, along with objects in a model, become implicit in, the implementation of the model. Typically the objects are referenced directly from instance, variables. Each object participating in a relationship must maintain referential consistency. By, representing the relationships between two objects as variables in both the , semantics of the, relationship is lost because it is distributed among the classes. The present invention creates a, explicit relationship model in addition to a domain object model, to use as the basis for writing, …

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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 June 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 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.
FiledJune 29, 1998
GrantedNo grant recorded
Term endedJune 29, 2018
Patent numberCA 2241876 A1
Classification (IPC)G06F3/14 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 29, 1998Term endedJune 29, 2018

Sources & verification

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