USD253230SExpiredUtility

Railroad crosstie for level crossing between a road and a railroad

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Assignee: A BETONG ABPriority: Oct 7, 1977Filed: Apr 6, 1978Granted: Oct 23, 1979
Est. expiryOct 7, 1997(expired)· nominal 20-yr term from priority
Inventors:Sten LimmergardStig Thim
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PatentIndex Score
1
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a railroad crosstie for level crossing between a road and a railroad, substantially as shown and described.

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