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:
Dec. 31, 2024
Filed:
Sep. 23, 2020
Applicant:
Sanford L.p., Atlanta, GA (US);
Inventor:
Kenneth Czaplewski, Westmont, IL (US);
Assignee:
Sanford, L.P., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2014.01); C09D 11/17 (2014.01); C09D 11/18 (2006.01); C09D 11/50 (2014.01);
U.S. Cl.
CPC ...
C09D 11/50 (2013.01); C09D 11/17 (2013.01); C09D 11/18 (2013.01);
Abstract
Reverse photochromic ink formulations containing encapsulated reverse photochromic colorant, methods of erasing reverse photochromic ink formulations including encapsulated reverse photochromic colorants by exposing them to UV light, and writing instruments including a writing tip portion connected to a light-shielding tubular member or refill and a reverse photochromic ink formulation including encapsulated reverse photochromic colorant are provided herein.