Fire protection sprinkler
The shading lines in the drawings show contour and are not intended to indicate surface ornamentation.
Claims
The ornamental design for a fire protection sprinkler, as shown and described.
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Type: Grant
Filed: Feb 1, 2021
Date of Patent: Apr 9, 2024
Assignee: Minimax Viking Research & Development GmbH (Bad Oldesloe)
Inventor: Michael James Oldham (Kalamazoo, MI)
Primary Examiner: Keith J Wilson
Application Number: 29/768,812