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:
Dec. 07, 2004
Filed:
Aug. 06, 2001
Applicant:
Inventors:
Assignee:
Tokai Kogyo Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 5/116 ;
U.S. Cl.
CPC ...
B65D 5/116 ;
Abstract
A through hole ( ) with an annular groove ( ) provided about its periphery is formed in a resin case ( ). The through hole ( ) is covered with a water/oil-repellent film ( ) comprising a porous film ( ). The through hole ( ) makes the resin case ( ) gas-permeable, and the water/oil-replacement film ( ) prevents entry of external water and oil, etc.