Granted Patent
Utility
US 5,862,999 · App. 08/491,539
Method of grinding pharmaceutical substances
Inventors:
David Czekai, Larry P. Seaman
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Jun 15, 1995
Inventors
David Czekai
Larry P. Seaman
Assignee (at issue)
Nano Systems L.L.C.
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.