Local and zone time data conversion processing for date-dependent information which spans one or two centuries
CA 2228500 C · Owner: Alter, Harvey · Inventors: Alter, Harvey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Date-dependent information in two digit format where the dates may occur in one or two centuries is provided for by time change interfaces (108) that convert date data in an external data file (114) from local time to zone time in zone input files (104) so that all dates occur in one century. Application programs (106) process the zone input files (104) using zone time instead of local time. After processing the zone time in the zone output files (113 111) , is processed by time change interfaces (110 109) to yield output data in , local time (112 115). By this inventive method, necessary two digit date format programming changes to the application programs (106) due to the turnof 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 31, 1996 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.