Granted Patent
Utility
US 5,375,481 · App. 08/152,118
Multi-position ratchet mechanism
Inventors:
Rene J. Cabrera, Francisco A. Amaral, John Amaral, John R. Bookwalter
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Nov 12, 1993
Inventors
Rene J. Cabrera
Francisco A. Amaral
John Amaral
John R. Bookwalter
Assignee (at issue)
Codman & Shurtleff, 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.