Method and system for wireless distribution of local information
CA 2444810 A1 · Owner: Dahlstrand, Martin · Inventors: Dahlstrand, Martin; Lei, Kimberly; Andersson, Fredrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a system, called an application meneger portable devices (1) can be , connected in various kinds of local area networks (LANs). In the portable devices local browsers are run to find services by listening in the local area network to messages broadcast from a local information server (5) through some base unit (3). The local information server registers local services and provides, on automatic requests from the local browsers address information , of the local services. The address information is used by a local browser to obtain, through the Internet, general information of the services from an HTTP server (9), that contains information of applications such as graphical , …
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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 April 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2024.
- 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.