Granted Patent
Utility
US 5,205,709 · App. 07/856,569
Filament wound drum compressor rotor
Inventors:
William P. Schimmel, Irvin J. Pollock, Lawrence T. Halstead
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Mar 24, 1992
Inventors
William P. Schimmel
Irvin J. Pollock
Lawrence T. Halstead
Assignee (at issue)
WILLIAMS INTERNATIONAL CO., L.L.C.
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.