Granted Patent
Utility
US 5,119,706 · App. 07/479,053
Machine process for chamfering of precision pieces having non-linear edges device therefor
Inventor:
Joseph William Poletti, III
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Feb 12, 1990
Inventor
Joseph William Poletti, III
Assignee (at issue)
Ehrhardt Tool and Machine Co., 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.