Granted Patent
Utility
US 5,291,143 · App. 07/849,112
Modulator with improved damping
Inventor:
Edward A. Cronauer
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Mar 9, 1992
Inventor
Edward A. Cronauer
Assignee (at issue)
UNITED TECHNOLOGIES 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.