Granted Patent
Utility
US 4,277,441 · App. 06/130,816
Apparatus for monitoring crystal growth
Inventor:
Emanual M. Sachs
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: Mar 17, 1980
Inventor
Emanual M. Sachs
Assignee (at issue)
Mobil Tyco Solar Energy 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.