Fastening arrangement in a telephone instrument
CA 1103378 A · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Bruun, Jan F.; Mellgren, Ronnie E.; Ryr, Karl A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a fastening arrangement for printed circuit cards in a telephone instrument whose casing comprises two parts, a rear and a front part the rear part, having a side part facing the front of the instrument and directed perpendicularly to the bottom plate. The side part has a number of fastening elements for the circuit cards which consist of projections each of which is provided with grooves. Facing the projections and along the inside of the front wall of the instrument, supporting elements are provided for the cards.
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 June 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
- 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.