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:
Jan. 26, 1999
Filed:
May. 15, 1997
Applicant:
Inventor:
Robert A Gatzen, Newington, CT (US);
Assignee:
Innovative Automation, Inc., Farmingdale, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
84414 ; 8441 / ;
Abstract
A polymer film drumhead having indentations in the surface, the indentations placed strategically by size, number and placement near the periphery of the drumhead to control the vibrational characteristics and the overtone content of the drumhead when struck.