IP Library › Assignment 005530/0030
Patent Assignment
Reel/Frame 005530/0030

Assignment of Assignors Interest.

Recorded: 1990-12-03 Pages: 3
Assignors
AHMED, OSMAN
Executed: 1990-11-20
BRADLEY, STEVEN A.
Executed: 1990-11-02
Assignee
LANDIS & GYR POWERS, INC., A CORP OF DE
1000 DEERFIELD PARKWAY,, BUFFALO GROVE,, ILLINOIS, 60015
Covered Property (1)
System for Controlling the Diffrenetial Pressure of a Room Having Laboratory Fume Hoods
Patent: 5,115,728 →
Application: 07/589,931 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Dec 14, 1998
From: LANDIS & STAEFA, INC.
To: LANDIS & GYR HOLDINGS, INC.
Reel/Frame 009638/0164 →
Merger & Name Change Dec 14, 1998
From: LANDIS & GYR HOLDINGS; CERBERUS HOLDINGS, INC.
To: SIEMENS BUILDING TECHNOLOGIES, INC.
Reel/Frame 009638/0167 →