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.:

US 7294287 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 13, 2007

Filed:

Sep. 01, 2006
Applicants:

Damien Thurber Cole, Drexel Hill, PA (US);

Kevin Rodney Gerzevske, Wilmington, DE (US);

Inventors:

Damien Thurber Cole, Drexel Hill, PA (US);

Kevin Rodney Gerzevske, Wilmington, DE (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07D 471/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Tetrahydro- and dihydroquinophenanthrine dione fluorescent whitening agents and a process for their preparation are provided.


Find Patent Forward Citations

Cole, Damien. (2007). Quinophenanthrine diones fluorescent whitening agents (U.S. Patent No. 7294287). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7294287

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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