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:
Oct. 20, 1992
Filed:
Aug. 20, 1990
Applicant:
Inventors:
Akira Tatsumi, Kashiwa, JP;
Toichi Hirata, Ushiku, JP;
Masakazu Haga, Ibaraki, JP;
Eiki Izumi, Ibaraki, JP;
Assignee:
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
60431 ; 60434 ; 60452 ; 417 34 ;
Tatsumi, Akira. (1992). Hydraulic drive system for construction machine (U.S. Patent No. 5155996). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5155996
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile