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Publication numberUSD412454 S
Publication typeGrant
Application numberUS 29/086,615
Publication dateAug 3, 1999
Filing dateApr 16, 1998
Publication number086615, 29086615, US D412454 S, US D412454S, US-S-D412454, USD412454 S, USD412454S
InventorsMichael A. Berkelhammer
Original AssigneeUnited Brass Works, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sight glass for sprinkler system lines
US D412454 S
Abstract  available in
Images(2)
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Claims(1)
  1. The ornamental design for sight glass for sprinkler system lines, as shown and described.
Description

FIG. 1 is a left front perspective view of an embodiment of a sight glass for sprinkler system lines showing my new design;

FIG. 2 is a front view thereof, the opposite side being the mirror image thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a left front perspective view of a second embodiment of the design;

FIG. 7 is a front view thereof, the opposite side being the mirror image thereof;

FIG. 8 is an left end view thereof;

FIG. 9 is a right end view thereof; and,

FIG. 10 is a bottom view thereof.

Non-Patent Citations
Reference
1Photocopy of catalog sheet of Grainger; p. 3096; date unknown but believed to be prior art.
2Photocopy of catalog sheets of McMaster-Carr; pp. 1238-1239; date unknown but believed to be prior art.
3Photocopy of drawing of United Brass Works, Inc. illustrating part No. 850020; dated Oct. 25, 1996.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6499439Jun 15, 2001Dec 31, 2002Triad Metal Products CompanyModular stamped sight glass assembly
Classifications
U.S. ClassificationD10/103, D10/96