Granted Patent
Utility
US 4,878,592 · App. 07/212,609
Apparatus for segregated refuse collection
Inventor:
Norman C. Lee
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jun 28, 1988
Inventor
Norman C. Lee
Assignee (at issue)
Zarn 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.