IP Library › Granted Patent US 5,333,699
Granted Patent Utility
US 5,333,699 · App. 07/995,814

Drill bit having polycrystalline diamond compact cutter with spherical first end opposite cutting end

Inventors: Gary M. Thigpen, William H. Sherwood, Jr.
Patented Case View Patent ↗
Granted: Aug 2, 1994 Filed: Dec 23, 1992
Inventors
Gary M. Thigpen
William H. Sherwood, Jr.
Assignee (at issue)
Baroid Technology, 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 5,333,699
App. No.
07/995,814
Filed
1992-12-23
Granted
1994-08-02
Kind
A