Telephone line protector with line disconnect and an entrance terminal assembly incorporating a plurality of protectors
CA 1270553 C · Owner: Nortel Networks Corporation · Inventors: Kupferschmidt, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A housing for a telephone line protector comprises a well in which are positioned two spring biased members. A first spring biased member is adjacent to the back end of the well and biased away therefrom. The second spring biased member is axially aligned with and biased away from the first spring biased member. One line conductor is connected to the first spring biased member and the other line conductor is connected to a terminal at the back end. The spring bias of the second spring biased member is stronger than the bias of the first spring biased member. Insertion of a protector module first causes movement of the first spring biased member to contact 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 June 19, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 2007.
- 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.