Granted Patent
Utility
US 5,415,638 · App. 08/128,694
Safety syringe needle device with interchangeable and retractable needle platform
Inventors:
Laurel A. Novacek, Fraser R. Sharp, Donald A. McLean
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Sep 30, 1993
Inventors
Laurel A. Novacek
Fraser R. Sharp
Donald A. McLean
Assignee (at issue)
Inviro Medical Devices, 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.