Patent Assignment
Reel/Frame 003805/0570
Change of Name Effective Aug.25,1980
Recorded: 1980-10-14
Pages: 2
Assignor
READING DOOR CLOSER CORP.
Executed: 1980-10-02
Assignee
Covered Properties
(6)
Piston Assembly for Door Closer
Patent:
4,019,220 →
Application:
05/648,627 →
Temperature Compensating Hydraulic Door Closer
Patent:
4,148,111 →
Application:
05/856,133 →
Door Closer with Assist or Door Operating Features
Patent:
4,222,147 →
Application:
05/888,217 →
Hydraulic Door Closer Construction
Patent:
4,394,787 →
Application:
05/928,403 →
Door Closer with Assist or Door Operating Features
Patent:
4,339,843 →
Application:
06/153,741 →
Door Closer Assist Linkage
Application:
06/166,334 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Change of Name
Sep 23, 1982
From: READING- DORMA CLOSER CORPORATION,
To: DORMA DOOR CONTROLS INC.,
Reel/Frame 004049/0188 →
Assignment of Assignor's Interest
Aug 3, 1995
From: DORMA DOOR CONTROLS, INC.
To: DORMA PROPERTIES, INC.
Reel/Frame 007570/0888 →
Assignment of Assignor's Interest
Jan 26, 2001
From: DORMA DOOR CONTROLS, INC.
To: DORMA PROPERTIES, INC.
Reel/Frame 011474/0115 →
Confirmatory License
Sep 27, 2007
From: WASHINGTON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 019896/0589 →
Merger
Apr 13, 2011
From: DORMA PROPERTIES, INC.
To: DORMA DOOR CONTROLS, INC.
Reel/Frame 026114/0194 →