Granted Patent
Utility
US 5,648,097 · App. 08/538,635
Calcium mineral-based microparticles and method for the production thereof
Inventor:
Elie S. Nuwayser
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Oct 4, 1995
Inventor
Elie S. Nuwayser
Assignee (at issue)
Biotek, 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.