Granted Patent
Utility
US 5,166,948 · App. 07/718,344
Optically pumped up converting light source
Inventors:
Pavle Gavrilovic, Shobha Singh
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Jun 19, 1991
Inventors
Pavle Gavrilovic
Shobha Singh
Assignee (at issue)
Polaroid Corporation
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.