IP Library › Granted Patent US 690,143
Granted Patent S1
US 690,143 · App. 29/448,088 · Granted Sep 24, 2013

Base for seating unit

Inventors: Sean M. Corcorran (East Grand Rapids, MI); Thomas Overthun (San Francisco, CA); Elger Oberwelz (San Francisco, CA); David J. Battey (Caledonia, MI); Nickolaus William Charles Deevers (Grand Rapids, MI); Keith Robert Machin (Wyoming, MI); James N. Ludwig (Grand Rapids, MI)
Assignee: Steelcase, Inc.
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Quick Facts
Patent No.
US 690,143
App. No.
29/448,088
Granted
Sep 24, 2013
Kind
S1
Claims (1)

The ornamental design for a base for seating unit, as shown and described.

Assignments (2)
PATENT SECURITY AGREEMENT Recorded Feb 4, 2026
From: AMQ SOLUTIONS, LLC; HALCON FURNITURE LLC; SMITH SYSTEM MANUFACTURING COMPANY; STEELCASE INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 074944/0368 →
PATENT SECURITY AGREEMENT Recorded Feb 4, 2026
From: AMQ SOLUTIONS, LLC; HALCON FURNITURE LLC; SMITH SYSTEM MANUFACTURING COMPANY; STEELCASE INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 074944/0784 →
Continuity (3)
Continuation 29439216 · Dec 7, 2012
Continuation 29436741 · Nov 8, 2012
Continuation 12987273 · Jan 10, 2011