Collapsible bollard
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Description
FIG. 1 is a front perspective view of a collapsible bollard showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a rear elevational view thereof; and
FIG. 5 is a side elevational view thereof.
Referenced Cited
Patent History
Patent number: D324920
Type: Grant
Filed: Apr 13, 1989
Date of Patent: Mar 24, 1992
Assignee: Trustees of the University of Pennsylvania (Philadelphia, PA)
Inventors: James M. Miller (Philadelphia, PA), James A. Wargo (Cherry Hill, NJ)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Woodcock Washburn Kurtz Mackiewicz & Norris
Application Number: 7/344,111
Type: Grant
Filed: Apr 13, 1989
Date of Patent: Mar 24, 1992
Assignee: Trustees of the University of Pennsylvania (Philadelphia, PA)
Inventors: James M. Miller (Philadelphia, PA), James A. Wargo (Cherry Hill, NJ)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Woodcock Washburn Kurtz Mackiewicz & Norris
Application Number: 7/344,111
Classifications
Current U.S. Class:
Post Or Beam (D25/126)