Granted Patent
Utility
US 6,092,665 · App. 08/737,871
Beneficiation of saline minerals
Inventors:
Roland Schmidt, Dale Lee Denham, Jr., Ralph B. Tacoma, Allen H. Moore, Allan L. Turner
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Jul 3, 1997
Inventors
Roland Schmidt
Dale Lee Denham, Jr.
Ralph B. Tacoma
Allen H. Moore
Allan L. Turner
Assignee (at issue)
Environmental Projects, Inc.
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.