Granted Patent
Utility
US 6,422,550 · App. 09/893,289
Extending clamp
Inventors:
Michael Stiefel, Jacques E. Hoffman
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jun 27, 2001
Inventors
Michael Stiefel
Jacques E. Hoffman
Assignee (at issue)
INTERTECH Co., Ltd.
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.