Granted Patent
Utility
US 5,142,885 · App. 07/688,642
Method and apparatus for enhanced scroll stability in a co-rotational scroll
Inventors:
Robert E. Utter, Daniel R. Crum
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Apr 19, 1991
Inventors
Robert E. Utter
Daniel R. Crum
Assignee (at issue)
American Standard Inc.
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.