Granted Patent
Utility
US 6,447,233 · App. 09/641,996
Automated door assembly for use in semiconductor wafer manufacturing
Inventor:
Jeffrey M. Denker
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Aug 18, 2000
Inventor
Jeffrey M. Denker
Assignee (at issue)
PRI Automation, 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.