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:
Apr. 19, 2005
Filed:
Oct. 22, 2002
Applicants:
Daniel Perlman, Arlington, MA (US);
Mark Fins, Newton, MA (US);
Inventors:
Daniel Perlman, Arlington, MA (US);
Mark Fins, Newton, MA (US);
Assignee:
Diversified Biotech, Inc., Boston, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
B43K005/00 ; C09D011/00 ;
U.S. Cl.
CPC ...
Abstract
A laboratory autography marking pen capable of delivering a low viscosity phosphorescent marking ink that contains a homogeneous suspension of phosphor particles having an average particle size of between 10 and 40 microns, and whose afterglow half-life is less than 5 minutes. The marking pen further includes a high porosity fiber channel writing nib whose ink flow channels are of a sufficient size to allow the phosphor particles suspended in the ink to flow by capillary transport through these channels onto an ink receiving substrate material.