Reflector for circular polarization antenna and process for the production thereof
CA 1232060 A · Owner: Showa Denko Kabushiki Kaisha · Inventors: Yoshida, Hirokazu; Kobayashi, Mikio; Takemura, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reflector for a circular polarization antenna is described, comprising, (A) a thermoplastic resin layer having a thickness of from 5 µm to 5 mm or coating layer having a thickness of 5 µm to 1 mm and good weather resistance; (B) a metallic layer having a thickness of from 5 µm to 1 mm; and, (C) an inorganic filler-containing thermoplastic resin layer having a thickness of from 500 µm to 15 mm and an inorganic filler content of from 10 to 80% by weight.
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 January 26, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2005.
- 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.