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:
Feb. 20, 1990
Filed:
Jul. 16, 1987
Applicant:
Inventors:
Takeshi Minegishi, Sagamihara, JP;
Yasuo Yoneshige, Kawasaki, JP;
Toshihiro Takehana, Yokohama, JP;
Toru Sakai, Tokyo, JP;
Assignee:
NHK Spring Co. Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428198 ; 5448 ; 428224 ; 428228 ; 428297 ; 428290 ; 428299 ; 428300 ; 428369 ; 4284231 ; 428420 ;
Abstract
A cushion has a main body formed of fibers including organic synthetic fibers which are stereoscopically intertwined. A cured polyurethane resion covers surfaces of the fibers and binds the fibers at their intersections. The cured polyurethane resin is obtained by curing a polyurethane prepolymer with water or steam.