Granted Patent
Utility
US 5,134,944 · App. 07/662,362
Processes and means for waste resources utilization
Inventors:
Leonard J. Keller, Austin N. Stanton
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Feb 28, 1991
Inventors
Leonard J. Keller
Austin N. Stanton
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.