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Publication numberUSD236428 S
Publication typeGrant
Publication dateAug 26, 1975
Filing dateNov 23, 1973
Publication numberUS D236428 S, US D236428S, US-S-D236428, USD236428 S, USD236428S
InventorsSherman A. Stewart
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Availablb copy
US D236428 S
Abstract  available in
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Description  (OCR text may contain errors)

Pitented Aug. 26, 1975 236,428 SQUARE noomncx WASHER Sherman A. Stewart, Palos Verdes, can, run 1:. Snyder, IaGrangqIll.,audHu|anE.Tarbell,Tom,Calll-,

V ssignon to Grefco, Inc Bala Cyuwyd, Pl. Flled Nov. 23, I973, 80:. No. 418,305 Term of patent 14 yea:

I v Danna-214 v FIG. 2

FIG. 3

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US7284933 *Jun 9, 2003Oct 23, 2007Jennmar CorporationSquare embossed roof and rib plate
US20040018062 *Jun 9, 2003Jan 29, 2004Frank CalandraSquare embossed roof and rib plate