IP Library › Granted Patent US 5,253,162
Granted Patent Utility
US 5,253,162 · App. 07/525,864

Shielding field method and apparatus

Inventor: John J. Hassett
Patented Case View Patent ↗
Granted: Oct 12, 1993 Filed: May 17, 1990
Inventor
John J. Hassett
Assignee (at issue)
AT COMM CORPORATION

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 5,253,162
App. No.
07/525,864
Filed
1990-05-17
Granted
1993-10-12
Kind
A