Granted Patent
Utility
US 5,271,911 · App. 07/968,902
Method for removing potassium from molybdenum trioxide
Inventor:
Michael J. Cheresnowsky
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Oct 30, 1992
Inventor
Michael J. Cheresnowsky
Assignee (at issue)
GTE Products 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.