Granted Patent
Utility
US 6,149,018 · App. 09/304,618
Method and apparatus for sorting recycled material
Inventors:
Fred M. Austin, Roy R. Miller, Brian J. Clark
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: May 3, 1999
Inventors
Fred M. Austin
Roy R. Miller
Brian J. Clark
Assignee (at issue)
Bulk Handling Systems
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.