Granted Patent
Utility
US 5,836,921 · App. 08/587,030
Hypodermic needle assembly
Inventor:
Sakharam D. Mahurkar
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Jan 16, 1996
Inventor
Sakharam D. Mahurkar
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.