Granted Patent
Utility
US 5,094,777 · App. 07/675,101
Polyamide fluorescent pigments
Inventor:
Thomas C. DiPietro
Patented Case
View Patent ↗
Granted: Mar 10, 1992
Filed: Mar 25, 1991
Inventor
Thomas C. DiPietro
Assignee (at issue)
DAY-GLO COLOR CORP.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.