Granted Patent
Utility
US 6,155,446 · App. 08/214,971
Method for encapsulating waste material and systems therefor
Inventors:
Loren D. Alexander, Lloyd L. Piper, II, Thaddeus S. Dzierzbicki, Cem M. Gokcen
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Mar 17, 1994
Inventors
Loren D. Alexander
Lloyd L. Piper, II
Thaddeus S. Dzierzbicki
Cem M. Gokcen
Assignee (at issue)
National Seal Corporation
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.