Patent Assignment
Reel/Frame 005251/0847
Assignment of Assignors Interest.
Recorded: 1990-02-20
Pages: 3
Assignor
COMPUTERVISION CORPORATION
Executed: 1990-02-12
Assignee
PRIME COMPUTER INC.
A DE CORP., NATICK, MASSACHUSETTS
Covered Properties
(11)
Lamp Holder for Projection Aligner
Patent:
4,244,012 →
Application:
05/920,289 →
Apparatus and Method for Fine Alignment of a Photomask to a Semiconductor Wafer
Patent:
4,265,542 →
Application:
06/020,294 →
Method and Apparatus for Targetless Wafer Alignment
Patent:
4,328,553 →
Application:
06/184,690 →
Projection Aligner with Bending Mirror
Patent:
4,376,580 →
Application:
06/239,547 →
Projection Aligner with Specific Means for Bending Mirror
Patent:
4,408,874 →
Application:
06/261,674 →
Method and Apparatus for Controlling Stepper Motors
Patent:
4,446,412 →
Application:
06/319,665 →
Method and Apparatus for Displaying Objects on an Interlaced Raster Scan Telvision Screen
Patent:
4,506,298 →
Application:
06/440,301 →
Shared Bit-Plane Display System
Patent:
5,029,111 →
Application:
07/043,705 →
Electromagnetic Shielding Clip
Patent:
4,803,306 →
Application:
07/057,610 →
High Speed Switching Circuit
Patent:
4,818,893 →
Application:
07/183,319 →
License Management System and License Storage Key
Patent:
4,924,378 →
Application:
07/205,986 →
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 2, 1981
From: NOVAK, W. THOMAS; VOLMER, DAVID W.
To: COMPUTERVISION CORPORATION, 2727 AUGUSTINE DRIVE, SANTA CLARA, CALIF. 95051, A CORP. OF DEL.
Reel/Frame 004008/0998 →
Assignment of Assignors Interest.
May 7, 1981
From: ZINKY, WILLIAM; ROSENBERG, LARRY
To: COMPUTERVISION CORPORATION, A CORP. OF DE
Reel/Frame 003926/0003 →
Assignment of Assignors Interest.
Nov 9, 1981
From: FRIEDMAN, DAVID; MANDEL, PHILIP
To: COMPUTERVISION CORPORATION, A CORP. OF DE
Reel/Frame 003950/0045 →
Assignment of Assignors Interest.
Nov 9, 1982
From: MANSELL, BARRY N.; FRIEDMAN, DAVID
To: COMPUTERVISION CORPORATION
Reel/Frame 004071/0049 →
Assignment of Assignors Interest.
Apr 2, 1984
From: COMPUTERVISION CORPORATION
To: APPLIED MATERIALS INC
Reel/Frame 004245/0813 →
Security Interest
Mar 16, 1990
From: DR HOLDINGS INC., A DE CORP.; DR ACQUISITION CORP., A CORP. OF DE; PRIME COMPUTER INC.; VERSACAS CORPORATION
To: CHEMICAL BANK (A NEW YORK BANKING CORPORATION)
Reel/Frame 005333/0131 →
Security Interest
Jan 8, 1992
From: PRIME COMPUTER, INC.
To: CHEMICAL BANK
Reel/Frame 005967/0683 →
Security Interest
Nov 2, 1992
From: COMPUTERVISION CORPORATION, A CORP. OF DE
To: CHEMICAL BANK, A NY CORP.
Reel/Frame 006314/0077 →
Assignment of Security Interest
Feb 20, 1996
From: COMPUTERVISION CORPORATION
To: BANKERS TRUST COMPANY
Reel/Frame 007815/0912 →
Termination and Release of Assignment of Security Interest in Patents
Apr 20, 1998
From: COMPUTERVISION CORPORATION, A DELAWARE CORPORATION
To: CHASE MANHATTAN BANK (F/K/A CHEMICAL BANK), AS COLLATERAL AGENT
Reel/Frame 009178/0329 →
Termination and Release of Assignment of Security
Jul 28, 1998
From: COMPUTERVISION CORPORATION, A DELAWARE CORP.
To: BANKERS TRUST COMPANY, AS COLLATERAL AGENT
Reel/Frame 009342/0885 →