Coupled cavity circuit with increased iris resonant frequency
CA 1310124 C · Owner: Litton Systems, Inc. · Inventors: Symons, Robert S.; Kirshner, Mark F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupled-cavity circuit (10) for a microwave electron tube is shown having one or more cavities (36) whose cross-sections are polygonally shaped such as, rectangles. Located in one or more corners of the polygonally shaped cavities (36) are irises (50) which have a higher resonant fre-quency. These irises (50) are generally triangularly shaped with rounded corners and one leg of the triangle rounded about the drift tube (38) of the microwave electron tube.
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 November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
- 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.