Granted Patent
Utility
US 6,616,421 · App. 09/738,059
Direct drive compressor assembly
Inventors:
Gerald K. Mruk, Peter Weber, Edward S. Czechowski
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Dec 15, 2000
Inventors
Gerald K. Mruk
Peter Weber
Edward S. Czechowski
Assignee (at issue)
Cooper Cameron Corporation
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.