Granted Patent
Utility
US 6,517,725 · App. 09/935,098
Oil dehydrator
Inventors:
Michael R. Spearman, John H. Burban, Mathews Thundyil, Majid Zia
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Aug 22, 2001
Inventors
Michael R. Spearman
John H. Burban
Mathews Thundyil
Majid Zia
Assignee (at issue)
Porous Media 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.