Granted Patent
Utility
US 5,211,352 · App. 07/810,239
Dual spring tension reducer
Inventors:
Christopher D. Meyer, David E. Righter, John G. MaCalla, Robert C. Pfeiffer
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Dec 19, 1991
Inventors
Christopher D. Meyer
David E. Righter
John G. MaCalla
Robert C. Pfeiffer
Assignee (at issue)
AlliedSignal, 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.