Hour meter apparatus and method
CA 1238492 A · Owner: Caterpillar Industrial Inc. · Inventors: Paine, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
22-, Abstract of the Disclosure, Hour Meter Apparatus and Method Electronic hourmeter devices having, non-volatile memories are useful for example, in, industrial vehicles. Advantageously such non-volatile, memories should be free from a need for battery back-up systems and should minimize the number of changes of the internal memory registers. The subject electronic hourmeter apparatus includes both a dynamic memory device and a non-volatile memory device. Data is maintained in each of the memory devices and memory bit changes are minimized by utilizing a gray coded binary representation of a portion of the data and by systematically altering the addressed memory location of a portion of …
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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
- Granted June 28, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2005.
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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.