IP Library › Granted Patent US 635,561
Granted Patent S1
US 635,561 · App. 29/304,395 · Granted Apr 5, 2011

Private branch exchange

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Quick Facts
Patent No.
US 635,561
App. No.
29/304,395
Granted
Apr 5, 2011
Kind
S1
Claims (1)

I claim the ornamental design for a private branch exchange, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Nov 3, 2008
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 021774/0425 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2008
From: NAKASHIMA, TOSHIHIRO
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 020669/0506 →