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:
Nov. 16, 1999
Filed:
Nov. 10, 1993
Applicant:
Inventors:
James B Philip, Jr, Mahtomedi, MN (US);
Charles W Gomez, Cottage Grove, MN (US);
Assignee:
Minnesota, Mining & Manufacturing Co., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430619 ; 430510 ; 430517 ; 430522 ; 430523 ;
Abstract
A photothermographic element comprising a substrate having on at least one side thereof a photothermographic system comprising silver halide spectrally sensitized to the infrared region of the electromagnetic spectrum, a light insensitive silver source, a reducing agent for silver ion, and a binder, said element further comprising at least one layer which contains an infrared-absorbing dye having a central nucleus of the formula ##STR1## wherein n is an integer of 1 to 12,