Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Design Patent
2008-05-06
2008-05-06
Davis, Antoine D. (Department: 2915)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Design Patent
active
29281987
CLAIM:
The ornamental design for a two-pan balance, as shown and described.
REFERENCES:
patent: D139917 (1945-01-01), Dreyfuss
patent: 4042050 (1977-08-01), Myers
patent: D400813 (1998-11-01), Toriumi et al.
patent: D443840 (2001-06-01), Ruban
Changshu Tianshun web page, http://www.tsscale.com/ebalance.htm (undated; accessed Nov. 8, 2007).
Nanjing East High Measurement Co., Ltd., MEASURETEK®web page, http://www.scalesline.com/products/Mechanical-Balance-2.html (undated; accessed Nov. 9, 2007).
Ohaus Corporation, “Harvard Trip Balance Series 1400 and 1500 Instruction Manual,” (May 28, 2004).
Ohaus Corporation, “Primer Balance Activity Guide,” (2003).
Ohaus Corporation, “School Balance Model SB1200” brochure (undated).
Ohaus Scale Corp., “Harvard Trip Balances by Ohaus” brochure (undated).
Ohaus Scale Corporation, “Even Arm Balance” brochure (undated).
“Model 1200 School Balance: The Creative Learning Tool” brochure (undated).
Nuzzi Michael
O'Grady Richard M.
Pobocha Zbigniew
Rapa Thomas
Ruban James W.
Davis Antoine D.
Ingerman Jeffrey H.
Ohaus Corporation
Ropes & Gray LLP
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