Granted Patent
Utility
US 4,518,399 · App. 06/644,090
Process for recovering gases from landfills
Inventors:
Henry Croskell, Tommy E. Graham
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Aug 24, 1984
Inventors
Henry Croskell
Tommy E. Graham
Assignee (at issue)
Monsanto 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.