IP Library › Granted Patent US 5,110,240
Granted Patent Utility
US 5,110,240 · App. 07/697,583

Apparatus for coupling tool holders

Inventors: James G. Zeilinger, Leon O. Kern
Patented Case View Patent ↗
Granted: May 5, 1992 Filed: May 9, 1991
Inventors
James G. Zeilinger
Leon O. Kern
Assignee (at issue)
DeVlieg-Bullard, 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,110,240
App. No.
07/697,583
Filed
1991-05-09
Granted
1992-05-05
Kind
A