IP Library › Granted Patent US 5,323,431
Granted Patent Utility
US 5,323,431 · App. 08/018,127

Device for securing a reactor vessel washer to a reactor vessel stud

Inventors: John J. Wilhelm, Ralph W. Tolino, Charles L. Danley
Patented Case View Patent ↗
Granted: Jun 21, 1994 Filed: Feb 16, 1993
Inventors
John J. Wilhelm
Ralph W. Tolino
Charles L. Danley
Assignee (at issue)
Westinghouse Electric Company LLC

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 5,323,431
App. No.
08/018,127
Filed
1993-02-16
Granted
1994-06-21
Kind
A