Granted Patent
Utility
US 5,787,932 · App. 08/721,887
Bypass tube for time delay height control valve
Inventor:
William C. Pierce
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 27, 1996
Inventor
William C. Pierce
Assignee (at issue)
Nai Neway, 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.