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:
May. 10, 1994
Filed:
Feb. 07, 1992
Applicant:
Inventors:
Wallace H Shapero, West Hills, CA (US);
Susan A Reyes, Agoura Hills, CA (US);
Assignee:
Mattel, Inc., El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
106208 ;
Abstract
A play material is formed using a self cross-linking sodium alginate combined with germaben II-E and butylparaben preservatives. A sodium chloride salt provides further preservative action which increases the firmness of the alginate gel material. The play material exhibits improved preservative action and avoidance of eye and skin irritation problems on the part of the user.