Personnel and resource tracking method and system for enclosed spaces
CA 2429573 A1 · Owner: Lepkofker, Robert · Inventors: Pang, Dexing; Lepkofker, Robert; Mizzi, John V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for tracking persons (25) or things. One or more tracking units (100) are associated with persons or things to be tracked. Each tracking unit includes one or more accelerometers and one or more gyroscopes to provide distance and heading or directional information. A master control station (MCS, 200) receives the distance and heading information or location information based thereon. MCS (200) may also display for displaying the location of at least one of the tracking units. The MCS programmed to determine the location based on: determination of a reference point and heading for the at least one tracking unit; data from the accelerometers and gyroscope, which provides …
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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, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2023.
- 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.