Granted Patent
Utility
US 4,511,275 · App. 06/380,167
Clamping mechanism
Inventors:
Francis J. Span, Aloysius T. M. Boland, Albertus J. A. J. van Laarhoven
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: May 20, 1982
Inventors
Francis J. Span
Aloysius T. M. Boland
Albertus J. A. J. van Laarhoven
Assignee (at issue)
U.S. Philips 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.