Granted Patent
Utility
US 5,158,569 · App. 07/633,267
Catheter placement locking and sealing device
Inventors:
Richard D. Strickland, William R. Houghtop
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 21, 1990
Inventors
Richard D. Strickland
William R. Houghtop
Assignee (at issue)
Ballard Medical Products
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.