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Patent
   D253230
Priority
Oct 07 1977
Filed
Apr 06 1978
Issued
Oct 23 1979
Expiry
Oct 23 1993
Inventors
Limmergard…
Assg.orig
A-Betong AB
Assg.curr
A-Betong AB
Entity
unknown
Referenced by
1
References
2
Maint.:
n/a
The ornamental design for a railroad crosstie for level crossing between a road and a railroad, substantially as shown and described.

FIG. 1 is a perspective view of a railroad crosstie (sleeper) of our new design;

FIG. 2 is a side view of the crosstie of FIG. 1;

FIG. 3 is a top view of the crosstie of FIG. 1;

FIG. 4 is an end elevation of the crosstie of FIG. 1.
INVENTORS:

Limmergard, Sten, Thim, Stig H. G.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D707157, Dec 15 2011 Clevêland Track Material, Inc. Switch point guard casting
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
4009827, Jun 12 1975 Flexible, resilient, and wear resistant railroad crossing structure
215073,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 06 1978A-Betong AB(assignment on the face of the patent)
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