Granted Patent
Utility
US 6,549,388 · App. 09/738,148
Electrical service apparatus with surge suppression protection
Inventor:
Darrell Robinson
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Dec 15, 2000
Inventor
Darrell Robinson
Assignee (at issue)
Ekstrom Industries, 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.