IP Library › Granted Patent US 884,515
Granted Patent S1
US 884,515 · App. 29/674,378 · Granted May 19, 2020

Electric-acoustic testing device

Inventor: David W. Mathew (Portland, OR)
Assignee: AUDIO PRECISION, INC.
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 884,515
App. No.
29/674,378
Granted
May 19, 2020
Kind
S1
Claims (1)

The ornamental design for an electric-acoustic testing device, as shown and described.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Aug 15, 2025
From: BARINGS FINANCE LLC
To: AUDIO PRECISION, INC.
Reel/Frame 072034/0538 →
SECURITY INTEREST Recorded Aug 14, 2025
From: AUDIO PRECISION, INC.
To: U.S. PCI SERVICES, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 072027/0034 →
SECURITY INTEREST Recorded Mar 13, 2025
From: AUDIO PRECISION, INC.
To: BARINGS FINANCE LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 070503/0550 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2018
From: MATHEW, DAVID W.
To: AUDIO PRECISION, INC.
Reel/Frame 047837/0395 →