Microstrip antenna compressed feed
CA 1262574 C · Owner: Mead, James B. · Inventors: Mead, James B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title of the Invention: MICROSTRIP ANTENNA COMPRESSED FEED, ABSTRACT OF THE DISCLOSURE, A compressed feed is used in a microstrip antenna for reducing the spacing between adjacent tap points on the feed line such that sigma angle changes - due to temperature variations - of a radiating beam in a radar system is reduced.
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 October 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 31, 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.