Granted Patent
Utility
US 5,488,924 · App. 08/163,661
Hopper for use in charging semiconductor source material
Inventors:
Julian Horvath, Dennis G. Jones, Jane E. Polett
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Dec 6, 1993
Inventors
Julian Horvath
Dennis G. Jones
Jane E. Polett
Assignee (at issue)
MEMC Electronic Materials, 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.