Granted Patent
Utility
US 5,265,979 · App. 07/992,073
High efficiency waste placement system for municipal landfills
Inventor:
David L. Hansen
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Dec 17, 1992
Inventor
David L. Hansen
Assignee (at issue)
Landfill Service Corporation
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.