USD324920SExpiredUtility

Collapsible bollard

84
Assignee: UNIV PENNSYLVANIAPriority: Apr 13, 1989Filed: Apr 13, 1989Granted: Mar 24, 1992
Est. expiryApr 13, 2009(expired)· nominal 20-yr term from priority
Inventors:James M. MillerJames A. Wargo
84
PatentIndex Score
24
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a collapsible bollard, as shown and described.

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