Granted Patent
Utility
US 5,612,011 · App. 08/559,553
Process for the purification of inert gases
Inventors:
Guido Ghisolfi, Dario Giordano, Giuseppina Boveri, Hussain Al Ghatta
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Nov 16, 1995
Inventors
Guido Ghisolfi
Dario Giordano
Giuseppina Boveri
Hussain Al Ghatta
Assignee (at issue)
Sinco Engineering, S.p.A.
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.