Granted Patent
Utility
US 6,523,568 · App. 09/823,605
Combination air vent/probe port and method of constructing same
Inventor:
John M. Trantham
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Mar 30, 2001
Inventor
John M. Trantham
Assignee (at issue)
Flowdesign, 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.