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Patent
   D246251
Priority
Oct 14 1975
Filed
Oct 14 1975
Issued
Nov 01 1977
Expiry
Nov 01 1991
Inventors
Hirsch, El…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
9
References
3
Maint.:
n/a
The ornamental design for a "vacuum breaker for valve stem packing," as shown.

FIG. 1 is a top plan view of a vacuum breaker for valve stem packing showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a perspective cross sectional view taken on line 3--3 of FIG. 1; and

FIG. 4 is an exploded perspective view thereof.
INVENTORS:

Hirsch, Elder F., Hirsch, Ronald F.

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D847954, Feb 23 2017 EASY SANITARY SOLUTIONS B V Shower drain
D849210, Feb 23 2017 EASY SANITARY SOLUTIONS B V Shower drain
D862665, Apr 04 2016 Easy Sanitary Solutions BV Shower drain
D935005, Oct 25 2018 Easy Sanitary Solutions BV Shower drain
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2270838,
3106935,
3929150,
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