Granted Patent
Utility
US 5,262,840 · App. 08/000,781
Multispectral reflectometer
Inventors:
Thornton Stearns, Subhash C. Sarkar
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Jan 4, 1993
Inventors
Thornton Stearns
Subhash C. Sarkar
Assignee (at issue)
Sequa 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.