Granted Patent
Utility
US 6,653,787 · App. 10/091,433
High power density multistage depressed collector
Inventors:
Raymond Watkins, Richard B. True
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Mar 5, 2002
Inventors
Raymond Watkins
Richard B. True
Assignee (at issue)
L-3 COMMUNICATIONS 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.