IP Library Granted Patent US 5,215,417
Granted Patent Utility
US 5,215,417 · App. 07/872,936

Rotary ring cutter

Inventors: Robert J. Ball, Keith F. Kleinstuber, Harry Pearson
Patented Case View Patent ↗
Granted: Jun 1, 1993 Filed: Apr 23, 1992
Inventors
Robert J. Ball
Keith F. Kleinstuber
Harry Pearson
Assignee (at issue)
THE GLEASON WORKS

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 5,215,417
App. No.
07/872,936
Filed
1992-04-23
Granted
1993-06-01
Kind
A