Mounting dielectric resonators
CA 1208318 A · Owner: British Telecommunications Public Limited Company · Inventors: Thorpe, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microwave dielectric resonator e.g. in a, microwave filter or microstrip circuit is fixed between, two polymeric layers of low dielectric constant which are heat bonded to provide a rugged assembly introducing minimal loss. When the layers are non-heat meltable e.g. PTFE, they may be bonded by an intermediate layer of low melting point polymeric material of low dielectric loss, e.g. a copolymer of tetraflouroethylene.
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 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.