IP Library › Granted Patent US 4,941,711
Granted Patent Utility
US 4,941,711 · App. 07/303,514

Cemented carbide tip

Inventor: Stephen P. Stiffler
Patented Case View Patent ↗
Granted: Jul 17, 1990 Filed: Jan 27, 1989
Inventor
Stephen P. Stiffler
Assignee (at issue)
KENNAMETAL 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 4,941,711
App. No.
07/303,514
Filed
1989-01-27
Granted
1990-07-17
Kind
A