The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1987
Filed:
Sep. 05, 1985
Applicant:
Inventor:
Carlo Buoli, Mirandola, IT;
Assignee:
501 GTE Telecomunicazioni S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333116 ; 333238 ;
Abstract
A directional coupler of the 3 DB and 90 degree branchline type with four ports. Four pairs of coupled lines of microstrip construction provide the connections between the ports. The first and third ports are opposite each other as are the second and fourth ports, with the first and third ports connected to associated circuits and the second and fourth ports unconnected.
Buoli, Carlo. (1987). Directional couplers of the branchline type (U.S. Patent No. 4697161). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4697161
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile