Method of atd (asynchronous time division) switching of data packets and an arrangement for implementing this method
CA 2012005 C · Owner: Lucent Technologies Inc. · Inventors: Van Ooyen, Gijsbertus Gerardus; Van Bavel, Petrus Johannes Maria; Van Tellingen, Harmanus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of ATD switching of data packets according to which various users are connected to a single subscriber line. By providing each data packet for each connection from a user to a receiver with a same identification code, specific information can be stored per user, such as the maximum number of packets transmitted within a time interval and the number of packets still authorized to be transmitted in a time interval. By implementing this method the switching of data packets can be monitored per user and per connection.
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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 March 13, 1990 and granted September 17, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2012.
- 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.