Granted Patent
Utility
US 5,226,514 · App. 07/872,876
Mounting for rotating spiral spring
Inventors:
Thomas D. Chimner, Michael Otto
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Apr 23, 1992
Inventors
Thomas D. Chimner
Michael Otto
Assignee (at issue)
Eaton 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.