Method of reducing data storage requirements associated with computer windowing environments
CA 2030438 C · Owner: Unix System Laboratories, Inc. · Inventors: Smolucha, Richard Joseph; Alecci, Donald Vincent; Hilbert, Ross Jay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method used in a computer system for managing attribute data for subobjects of a class of data objects. When a data object is created a set of , default, attributes are stored in internal memory in association with the data object for all, instances of subobjects of the data object. A set of attributes for overriding the, default attributes are stored in internal memory for each instance of a subobject. When a query or system response is required which requires knowledge of the attributes for an instance of a subobject these final attributes are formed , by fetching the default attributes associated with the data object and by overwriting the default, attributes with the overriding …
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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 November 21, 1990 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.