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:
Apr. 26, 1994
Filed:
Nov. 29, 1991
Takashi Oyamada, Tokyo, JP;
Masahiro Wada, Chiba, JP;
NEC Corporation, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A watch type paging receiver which may be waterproof in the daily life and operated with an air cell is provided. Each of a body casing which is accommodating a receiver and a battery casing which is holding a battery accommodated within the body casing is provided with an air vent by which the inside of the battery casing communicates with the outside of the body. The air vent is formed of hole in a battery casing wall being adjacent to the belt and the air vent of the battery casing is provided with a porous waterproofing filter. An air vent communicating from inside to outside is opened at the portion corresponding to each air vent of the body casing and the battery casing.