Granted Patent
Utility
US 5,284,071 · App. 07/982,941
Unfolding bolt tightening spanner
Inventors:
Philippe Brettes, Jose C. Guillard
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Nov 30, 1992
Inventors
Philippe Brettes
Jose C. Guillard
Assignee (at issue)
Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A
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.