Granted Patent
Utility
US 5,281,311 · App. 07/907,391
Process for reducing the acid content of hydroxylamine salt solutions and for preparing hydroxylamines from hydroxylamine salts
Inventors:
Hossein Sharifian, Alan R. Tanner
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Jul 1, 1992
Inventors
Hossein Sharifian
Alan R. Tanner
Assignee (at issue)
SACHEM, 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.