Patent Assignment
Reel/Frame 074513/0453
Release of Security Interest
Recorded: 2026-04-29
Pages: 9
Assignor
EL DORADO INVESTMENT COMPANY
Executed: 2026-04-29
Assignee
SWITCHBOARD APPARATUS, INC.
11333 ADDISON AVE. SUITE 100, FRANKLIN PARK, ILLINOIS, 60131
Covered Properties
(5)
Connection of Two Angled Bus Bars
Patent:
744,949 →
Application:
29/437,940 →
Bus System Connecting Bus Bars and a Method of Connecting Bus Bars
Connection of Two Angled Bus Bars
Patent:
776,615 →
Application:
29/539,826 →
Electrial Panelboard Having an Enclosure Over an Exposed Terminal of Circuit Breaker Mounted to a Panel of the Electrial Panelboard
Patent:
5,933,319 →
Application:
09/087,556 →
Electrical Busway Meter Service Panel Combination
Patent:
5,587,874 →
Application:
08/515,649 →
Related Assignments
(9)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
May 29, 1998
From: BUCKNER, BILL W.; HOPPENSTEADT, DALE A.
To: INTEL CORPORATION; SWITCHBORD APPARATUS, INC.
Reel/Frame 009230/0200 →
Assignment of Assignor's Interest
Sep 8, 2000
From: HOPPENSTEADT, DALE A.; SWITCHBOARD APPARATUS, INC.
To: ELECTRIC CITY CORPORATION; ELECTRIC CITY ACQUISITION CORPORATION
Reel/Frame 011072/0319 →
Assignment of Assignor's Interest
Jan 31, 2014
From: MANHART, JAMES S.; RYAN, JOHN F.
To: SAI ADVANCED POWER SOLUTIONS
Reel/Frame 032107/0888 →
Assignment of Assignor's Interest
Sep 16, 2015
From: MANHART, JAMES S.; RYAN, JOHN
To: SAI ADVANCED POWER SOLUTIONS
Reel/Frame 036579/0476 →
Assignment of Assignor's Interest
Sep 17, 2015
From: MANHART, JAMES S.
To: SAI ADVANCED POWER SOLUTIONS
Reel/Frame 036594/0655 →
Security Interest
Apr 4, 2017
From: SWITCHBOARD APPARATUS, INC.
To: EL DORADO INVESTMENT COMPANY
Reel/Frame 041849/0851 →
Security Interest
Mar 25, 2019
From: SAI ADVANCED POWER SOLUTIONS, INC.
To: EL DORADO INVESTMENT COMPANY
Reel/Frame 048693/0073 →
Release of Security Interest
Apr 29, 2026
From: EL DORADO INVESTMENT COMPANY
To: SAI ADVANCED POWER SOLUTIONS, INC.
Reel/Frame 074513/0607 →
Patent Security Agreement
Jun 4, 2026
From: SAI ADVANCED POWER SOLUTIONS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 075700/0155 →