Patent Assignment
Reel/Frame 003866/0560
Assignment of Assignors Interest.
Recorded: 1981-02-09
Pages: 2
Assignee
HELIX TECHNOLOGY CORPORATION, A CORP. OF DE.
266 SECOND AVE., WALTHAM, MASSACHUSETTS, 02154
Covered Property
(1)
Radioactive Waste Treatment Apparatus
Patent:
4,416,855 →
Application:
06/232,821 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Conditional Assignment
Nov 23, 1981
From: HELIX TECHNOLOGY CORPORATION, A DE CORP.; FIRST NATIONAL BANK OF BOSTON THE, A NATIONAL BANKING ASSOC.
To: KOCH PROCESS SYSTEMS, INC. A CORP. OF DE
Reel/Frame 003944/0504 →
Assignment of Assignors Interest.
May 11, 1992
From: KOCH PROCESS SYSTEMS, INC. A CORP. OF DELAWARE
To: PROCESS SYSTEMS INTERNATIONAL, INC. A CORP. OF MASSACHUSETTS
Reel/Frame 006109/0272 →
Security Interest
Dec 12, 1994
From: PROCESS SYSTEMS INTERNATIONAL, INC.
To: NATIONAL CITY BANK; NBD BANK, N.A.
Reel/Frame 007327/0231 →