Granted Patent
Utility
US 4,332,476 · App. 06/140,881
Method and apparatus for studying surface properties
Inventors:
Johan Stenberg, Lars Stiblert, Erland T. Sandstrom
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Apr 16, 1980
Inventors
Johan Stenberg
Lars Stiblert
Erland T. Sandstrom
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.