Granted Patent
Utility
US 4,743,182 · App. 06/898,696
Rotating piston compressor with thin-walled radially-resilient piston
Inventor:
Hans-Peter Schabert
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Aug 21, 1986
Inventor
Hans-Peter Schabert
Assignee (at issue)
Kraftwerk Union Aktiengesellschaft
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.