Granted Patent
Utility
US 5,478,389 · App. 08/234,273
Pollution remedial composition and its preparation
Inventor:
Richard Loomis
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Apr 28, 1994
Inventor
Richard Loomis
Assignee (at issue)
Loomis Family Trust
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.