Granted Patent
Utility
US 5,157,876 · App. 07/787,154
Stress-free chemo-mechanical polishing agent for II-VI compound semiconductor single crystals and method of polishing
Inventor:
Daniel Medellin
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Nov 4, 1991
Inventor
Daniel Medellin
Assignee (at issue)
Rockwell International 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.