IP Library › Granted Patent US 739,505
Granted Patent S1
US 739,505 · App. 29/489,651 · Granted Sep 22, 2015

Restrictor device

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Quick Facts
Patent No.
US 739,505
App. No.
29/489,651
Granted
Sep 22, 2015
Kind
S1
Claims (1)

The ornamental design for a restrictor device, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Sep 7, 2018
From: DRESSER, INC.
To: DRESSER, LLC
Reel/Frame 047390/0878 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2014
From: JONES, DAVID MICHAEL; MAY, LAMAR EDWARD
To: DRESSER, INC.
Reel/Frame 032802/0889 →