System and method for locating objects and communicating with the same
CA 2601088 C · Owner: The Alfred E. Mann Foundation For Scientific Research · Inventors: Karr, Lawrence J.; Schulman, Joseph H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object locator system utilizes a microtransponder (12) that is used in association with an object to be located. A remote locator (10) transmits an encoded signal in which is embedded an identification code associated with the object to be located. The microtransponder (12) receives the encoded transmitted signal and processes such signal utilizing fast fourier transform techniques. The microtransponder (12) correlates the transformed received signal with a fast fourier transformed version of an identification code associated with the microtransponder (12) and upon detection of a correlation transmits an acknowledgement signal to the remote locator (10). The remote locator (10) …
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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 December 20, 2005 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.