Granted Patent
Utility
US 5,182,408 · App. 07/691,363
Process for preparation of stable aqueous solutions of zirconium chelates
Inventor:
Sharif Sharif
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Apr 25, 1991
Inventor
Sharif Sharif
Assignee (at issue)
Zirconium Technology 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.