Method and apparatus for accessing a nonvolatile memory
CA 2063560 A1 · Owner: Medtronic, Inc. · Inventors: Hooper, William J.; Thompson, David L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for accessing a nonvolatile electrically erasable programmable read only memory (EEPROM) following hermetic closure of a device containing the EEPROM. In specific application the, EEPROM is associated with other circuitry within the hermetically sealed enclosure and accessed by a direct connection to a feedthrough pin extending through the hermetic enclosure. Following hermetic sealing the, memory is still accessible with low voltage and coded pulses for programming the memory in any desired fashion having utility with respect to the other circuitry and the overall function of the hermetically sealed device. In the implantable medical device field the, invention may …
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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 June 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2013.
- 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.