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. 16, 1991
Filed:
Jun. 27, 1989
Applicant:
Inventor:
Yasuhiko Numano, Tokyo, JP;
Assignee:
Japan Air Lines Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
2206 ; 12820113 ; 12820417 ;
Abstract
A humidity-retaining mask includes a foldable mask body made of humidity-absorbing sheet material which is folded into a honeycomb structure when the mask is used. The mask body has a recessed portion on the upper side thereof to receive a user's nostril, and ear traps attached to the mask body.