Integrity mapping in data communication system
CA 2075229 A1 · Owner: Fisher Controls International, Inc. · Inventors: Snowbarger, Jim Lee; Halbleib, Harold Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for communicating with other devices over a communication system is disclosed which has the capability of being a segment reporter and if it is not a segment reporter, of determining when it should become a segment reporter. The device includes a transmitter and receiver such that if the device is a segment reporter, it can transmit periodically a report request message requiring other devices to transmit report messages back to it and it can transmit an integrity map to all other devices based upon the report messages which it received from those devices. If the device is not a segment reporter it can, transmit report messages back to the segment reporter in response to a report …
Read the whole patent
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 August 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2014.
- 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.