Granted Patent
Utility
US 6,257,595 · App. 09/389,057
Collect chuck with quick-change cap
Inventors:
Anthony J. Difasi, Donald N. Terwilliger
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Sep 2, 1999
Inventors
Anthony J. Difasi
Donald N. Terwilliger
Assignee (at issue)
Hardinge, 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.