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:
Jul. 01, 1986
Filed:
Mar. 21, 1985
Applicant:
Inventor:
Katsumi Utsugi, Hidakamachi, JP;
Assignees:
Nippon Oils & Fats Co., Ltd., Tokyo, JP;
Nichiyu Giken Kogyo Co., Ltd., Kawagoe, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
523218 ; 521 54 ; 521138 ; 521178 ; 521182 ; 523219 ;
Abstract
A pressure-resistant buoyancy material, comprising pressure-resistant hollow elements, a syntactic foam, and an empty space intervening between the pressure-resistant hollow elements and the syntactic foam, communicating with the outside of the buoyancy material. The pressure-resistant hollow elements are retained in a freely movable state in the empty space.