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:
Oct. 15, 2002
Filed:
Sep. 20, 1994
Applicant:
Inventor:
Rachel M. Loftin, Halifax, MA (US);
Assignee:
Berol Corporation, Freeport, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 3/300 ;
U.S. Cl.
CPC ...
C08L 3/300 ;
Abstract
A dry-wipeable overhead projector film ink is provided which includes a colorant, an acrylic polymer having a film forming temperature below room temperature, and water. Preferred inks further include a surfactant and an anti-drying agent. The inks are easily removable from most types of overhead projector film by wiping with a dry cloth or fingertip. Certain preferred inks are also removable by wiping with a wet cloth.