IP Library Granted Patent US 875,578
Granted Patent S1
US 875,578 · App. 29/664,953 · Granted Feb 18, 2020

Portable test instrument

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
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 875,578
App. No.
29/664,953
Granted
Feb 18, 2020
Kind
S1
Claims (1)

The ornamental design for a portable test instrument, as shown and described.

Assignments (2)
SECURITY INTEREST Recorded Aug 8, 2025
From: EXFO INC. (A CORPORATION RESULTING FROM THE AMALGAMATION OF 11172239 CANADA INC. AND EXFO INC.); ONTOLOGY-PARTNERS LIMITED
To: NATIONAL BANK OF CANADA
Reel/Frame 072338/0500 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2018
From: SIMARD, MICHAEL
To: EXFO INC.
Reel/Frame 047454/0366 →