Granted Patent
Utility
US 6,130,539 · App. 09/136,793
Automatic gain control for a line locator
Inventor:
Stevan Polak
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Aug 19, 1998
Inventor
Stevan Polak
Assignee (at issue)
Metrotech 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.