Granted Patent
Utility
US 4,554,078 · App. 06/612,501
Methods of and apparatus for effluent disposal
Inventors:
Ronald G. Huggins, William D. O'Brien, Jr., Fred P. Partus
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: May 21, 1984
Inventors
Ronald G. Huggins
William D. O'Brien, Jr.
Fred P. Partus
Assignee (at issue)
AT&T Technologies Incorporated
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.