Deterministic access protocol local area network
CA 1279385 C · Owner: The University Of Toronto Innovations Foundation · Inventors: Lee, Ernest Stewart; Boulton, Peter I.P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
APPLICANT: University of Toronto, Innovations Foundation INVENTORS: P.I.P. Boulton and, E.S. Lee TITLE: A DETERMINISTIC ACCESS PROTOCOL LOCAL AREA NETWORK, A B S T R A C T, A data controller to control passage of data between a plurality of data handling devices comprises a communication link to permit communication of the devices with one another. An indicator is associated with each of the devices to indicate data is to be transmitted from any one of said devices. Inhibit means operate upon a device after it transmits data to inhibit access of that device to the communication link and to the indicator. Reset means are responsive to the indicator to remove the inhibit means when the …
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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 January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- 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.