Granted Patent
Utility
US 6,042,570 · App. 09/248,654
Needle point protection sheath
Inventors:
David Bell, William J. Schnell
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Feb 11, 1999
Inventors
David Bell
William J. Schnell
Assignee (at issue)
DSU Medical Corp.
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.