IP Library › Granted Patent US 621,039
Granted Patent S1
US 621,039 · App. 29/341,360 · Granted Aug 3, 2010

Grooved piston

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Quick Facts
Patent No.
US 621,039
App. No.
29/341,360
Granted
Aug 3, 2010
Kind
S1
Claims (1)

The ornamental design for a grooved piston, as shown and described.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066438/0323 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 2, 2009
From: MAXA, STEVEN J.; CERNOHOUS, ADAM J.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 023181/0055 →