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:
Feb. 21, 1989
Filed:
Dec. 22, 1987
Applicant:
Inventors:
Kenji Ito, Shizuoka, JP;
Ikuji Kurokawa, Shizuoka, JP;
Assignee:
Yamaha Corp., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
84402 ;
Abstract
In construction of a laminated FRP sound bar for percussive musical instrument, isolated pores are formed in FRP components of the lamination in order to raise bonding strength between the adjacent FRP components.
Ito, Kenji. (1989). Laminated frp sound bar for percussive musical instruments (U.S. Patent No. 4805513). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4805513
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile