Granted Patent
Utility
US 6,354,808 · App. 09/546,224
Modular liquid ring vacuum pumps and compressors
Inventors:
Ramesh B. Shenoi, Carl G. Dudeck
Patented Case
View Patent ↗
Granted: Mar 12, 2002
Filed: Apr 10, 2000
Inventors
Ramesh B. Shenoi
Carl G. Dudeck
Assignee (at issue)
The Nash Engineering Company
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.