Granted Patent
Utility
US 5,352,285 · App. 08/117,723
Microsurfacing system
Inventor:
Dennis Krivohlavek
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Sep 7, 1993
Inventor
Dennis Krivohlavek
Assignee (at issue)
Asphalt Technology LLC.
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.