Granted Patent
Utility
US 6,565,284 · App. 09/733,592
Infiltration control system and method
Inventor:
Stephen V. Gearhart
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Dec 8, 2000
Inventor
Stephen V. Gearhart
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.