Patent Assignment
Reel/Frame 004823/0077
Assignment of 1/2 of Assignors Interest
Recorded: 1988-01-27
Pages: 1
Assignor
VALAVAARA, VILJO K.
Executed: 1988-01-25
Assignee
ROLSTON, GEORGE A.
43 EGLINTON EAST, #706, TORONTO, ONTARIO, M4P 1A2, CANADA
Covered Property
(1)
Topology Fabrication Apparatus
Patent:
4,749,347 →
Application:
06/921,124 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 21, 1993
From: VALAVAARA, VILJO K.; ROLSTON, GEORGE A.
To: IBM CORPORATION
Reel/Frame 006540/0518 →
Assignment of Assignor's Interest
Feb 6, 1995
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: STRATASYS, INC.
Reel/Frame 007297/0467 →
Assignment of Assignor's Interest
Mar 13, 1995
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: STRATASYS, INC.
Reel/Frame 007374/0184 →