IP Library › Granted Patent US 5,032,689
Granted Patent Utility
US 5,032,689 · App. 07/394,110

EMI/RFI shielding vent and method of use

Inventors: Brian S. Halligan, Eivind Johansen
Patented Case View Patent ↗
Granted: Jul 16, 1991 Filed: Aug 15, 1989
Inventors
Brian S. Halligan
Eivind Johansen

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 5,032,689
App. No.
07/394,110
Filed
1989-08-15
Granted
1991-07-16
Kind
A