IP Library › Assignment 025421/0001
Patent Assignment
Reel/Frame 025421/0001

Assignment of Assignor's Interest

Recorded: 2010-11-24 Pages: 5
Assignors
HELENIUS, KALLE
Executed: 2010-10-19
PATTERSSON, HENRIK
Executed: 2010-10-19
Assignee
METSO PAPER, INC.
FABIANINKATU 9 A, HELSINKI, FIN-00130, FINLAND
Covered Property (1)
Sound Attenuator for Low Frequencies, Method for Manufacturing Sound Attenuator for Low Frequencies and System for Attenuating Low Frequencies for Example in Air-Conditioning Ducts of Paper Mills
Patent: 8,272,475 →
Application: 12/990,185 →
Publication: US 2011/0061968
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the to Correct Second Inventors Last Name from Pattersson to Pettersson Previously Recorded on Reel 025421 Frame 0001. Assignor(S) Hereby Confirms the Assignment. Mar 23, 2011
From: HELENIUS, KALLE; PETTERSSON, HENRIK
To: METSO PAPER, INC.
Reel/Frame 026008/0333 →
Change of Name Mar 27, 2014
From: METSO PAPER, INC.
To: VALMET TECHNOLOGIES, INC.
Reel/Frame 032551/0426 →