Remote digital carrier alarm and terminal by-pass system
CA 1257718 A · Owner: Seiscor Technologies, Inc. · Inventors: Casady, Donald R.; Suter, Cecil L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A T1 digital carrier system having a master terminal and four serially coupled remote terminals. Each remote terminal has a by-pass switch for automatically by-passing that remote terminal should a service threatening condition exist therein thereby maintaining service to all remaining remote terminals. In addition major and minor alarm information (indicating service requiring conditions) is transmitted by each remote terminal during signaling frames in the T1 serial bit stream.
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
- Granted July 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 18, 2006.
- 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.