Patent Assignment
Reel/Frame 006553/0818
Assignment of Assignor's Interest
Recorded: 1993-05-04
Pages: 2
Assignor
LONGSWORTH, RALPH C.
Executed: 1993-04-19
Assignee
APD CRYOGENICS INC.
1833 VULTEE STREET, ALLENTOWN, PENNSYLVANIA, 18103
Covered Property
(1)
Cryogenic Refrigerator with Single Stage Compressor
Patent:
5,337,572 →
Application:
08/057,708 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 12, 2002
From: IGC-APD CRYOGENICS, INC.
To: IGC-POLYCOLD SYSTEMS, INC.
Reel/Frame 012653/0357 →
Change of Name
Nov 30, 2004
From: APD CRYOGENICS INC.
To: IGC-APD CRYOGENICS INC.
Reel/Frame 015400/0194 →
Change of Name
Mar 8, 2005
From: IGC POLYCOLD SYSTEMS INC.
To: HELIX POLYCOLD SYSTEMS INC.
Reel/Frame 015851/0156 →
Assignment of Assignor's Interest
Apr 29, 2005
From: HELIX POLYCOLD SYSTEMS INC.
To: HELIX TECHNOLOGY CORPORATION
Reel/Frame 016182/0209 →
Assignment of Assignor's Interest
Jan 27, 2006
From: HELIX TECHNOLOGY CORPORATION
To: BROOKS AUTOMATION, INC.
Reel/Frame 017176/0706 →