Granted Patent
Utility
US 4,602,994 · App. 06/544,873
Removal of PCBs and other halogenated organic compounds from organic fluids
Inventors:
Louis L. Pytlewski, Frank J. Iaconianni, Kenneth Krevitz, Arthur B. Smith
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Oct 24, 1983
Inventors
Louis L. Pytlewski
Frank J. Iaconianni
Kenneth Krevitz
Arthur B. Smith
Assignee (at issue)
The Franklin Institute
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.