Granted Patent
Utility
US 4,477,250 · App. 06/473,043
Asphalt recycle plant and method
Inventors:
David F. Brashears, Emanuel J. Elliott, Theodore G. Butler
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Mar 7, 1983
Inventors
David F. Brashears
Emanuel J. Elliott
Theodore G. Butler
Assignee (at issue)
Mechtron International Corp.
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.