Patent Assignment
Reel/Frame 005170/0310
Assignment of Assignors Interest.
Recorded: 1989-10-31
Pages: 3
Assignee
BELL COMMUNICATIONS RESEARCH, INC.
290 WEST MOUNT PLEASANT AVENUE, A CORP. OF DE, LIVINGSTON, NEW JERSEY, 07039
Covered Property
(1)
Two-Level Lithographic Mask for Producing Tapered Depth
Patent:
4,938,841 →
Application:
07/429,560 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.