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:
Mar. 25, 1986
Filed:
Feb. 10, 1981
Applicant:
Inventor:
Werner Handl, Altdorf, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
524490 ; 524491 ; 524505 ; 525 95 ; 525 97 ;
Abstract
An eraser composition composed of conventional fillers and additives wherein the binder is a styrene-butadiene-styrene block polymer having a butadiene portion of 10 to 40%. The eraser composition can be easily extruded using simple commercial machines presently available and thus is inexpensive to manufacture. Furthermore, the use of this particular material as a binder produces a superior eraser composition.
Handl, Werner. (1986). Eraser with thermoplastic binder (U.S. Patent No. 4578420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4578420
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile