Granted Patent
Utility
US 6,174,148 · App. 09/299,741
Water jet type air compressor system, its starting method, and water quality control method thereof
Inventor:
Nozomu Suzuki
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Apr 27, 1999
Inventor
Nozomu Suzuki
Assignee (at issue)
ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES 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.