Granted Patent
Utility
US 6,314,856 · App. 09/195,755
Manufacture of variable stiffness microtubing
Inventors:
A. Lane Keith, Gary G. Massengale, John T. Riddle, Ronald B. Roth
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Nov 18, 1998
Inventors
A. Lane Keith
Gary G. Massengale
John T. Riddle
Ronald B. Roth
Assignee (at issue)
HV Technologies, 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.