Granted Patent
Utility
US 5,544,971 · App. 08/380,945
Methods and compositions for recycling asphalt pavement
Inventors:
Fred R. Huege, Patrick J. Shields
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Jan 31, 1995
Inventors
Fred R. Huege
Patrick J. Shields
Assignee (at issue)
Chemical Lime Company
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.