Granted Patent
Utility
US 6,027,558 · App. 09/110,410
Hydrated lime added directly to asphalt cement as a multi-functional modifier for asphalt mixtures
Inventors:
Dallas N. Little, Robin E. Graves, Fred R. Huege
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Jul 6, 1998
Inventors
Dallas N. Little
Robin E. Graves
Fred R. Huege
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.