IP Library › Assignment 004253/0421
Patent Assignment
Reel/Frame 004253/0421

Assignment of Assignors Interest.

Recorded: 1984-05-08 Pages: 2
Assignors
ARMSTEAD, BRIAN H.
Executed: 1983-09-09
QUINN, JAMES P.
Executed: 1983-09-09
Assignee
Covered Property (1)
Calcined Silicas and Their Use in Beer Clarification
Patent: 4,515,821 →
Application: 06/530,363 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Apr 28, 1987
From: INTERNATIONALE OCTROOI MAATSCHAPPIJ OCTROPA B.V.
To: UNILEVER PATENT HOLDINGS B.V.
Reel/Frame 004704/0407 →
Assignment of Assignor's Interest Nov 25, 1998
From: OCTROPA BV (RE-NAMED UNILEVER PATENT HOLDINGS B.V.)
To: CROSFIELD LIMITED
Reel/Frame 009596/0980 →