IP Library › Granted Patent US 648,426
Granted Patent S1
US 648,426 · App. 29/366,644 · Granted Nov 8, 2011

Aeration pipe unit

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Quick Facts
Patent No.
US 648,426
App. No.
29/366,644
Granted
Nov 8, 2011
Kind
S1
Claims (1)

The ornamental design for an aeration pipe unit, as shown and described.

Assignments (1)
CHANGE OF NAME Recorded Sep 5, 2017
From: MITSUBISHI RAYON CO., LTD.
To: MITSUBISHI CHEMICAL CORPORATION
Reel/Frame 043750/0834 →