Granted Patent
Utility
US 5,046,921 · App. 07/542,291
Moisture-removal device for a compressed air system
Inventor:
Hideo Tamamori
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Jun 22, 1990
Inventor
Hideo Tamamori
Assignee (at issue)
Nippon Air Brake Co., Ltd.
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.