Granted Patent
Utility
US 4,425,038 · App. 06/312,488
Technique to modify wafer geometry
Inventors:
Carlo La Fiandra, Burke E. Nelson
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Oct 19, 1981
Inventors
Carlo La Fiandra
Burke E. Nelson
Assignee (at issue)
PerkinElmer, Inc.
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.