Granted Patent
Utility
US 5,246,012 · App. 07/810,379
Bronchoalveolar lavage catheter
Inventor:
Richard D. Strickland
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Dec 19, 1991
Inventor
Richard D. Strickland
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.