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:
Mar. 05, 1991
Filed:
Jul. 17, 1990
Tsutomu Nishida, Ibaraki, JP;
Kazumi Kawashima, Takatsuki, JP;
Kazuyasu Yamamoto, Minoo, JP;
Naoki Shintani, Ibaraki, JP;
Naoji Okumura, Ibaraki, JP;
Yasuaki Sakanishi, Ibaraki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A screen device suited to use in a projection type display device for a high-definition television set. The screen device includes a screen on which television images are projected, and a screen frame to which this screen is attached at the central section thereof. Incorporated into this screen frame are speakers which are used as the front speakers of a sound reproduction system of the type which is commonly known as the 3-1 type 4-channel system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile