Granted Patent
Utility
US 5,269,968 · App. 07/899,482
Compositions for removing polychlorinated biphenyls from a contaminated surface
Inventors:
Melvin N. Miller, Thomas J. Rucker
Patented Case
View Patent ↗
Granted: Dec 14, 1993
Filed: Jun 16, 1992
Inventors
Melvin N. Miller
Thomas J. Rucker
Assignee (at issue)
Burlington Environmental, 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.