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Patent
   D269664
Priority
Sep 26 1980
Filed
Sep 26 1980
Issued
Jul 12 1983
Expiry
Jul 12 1997
Inventors
Marks, Bar…
Assg.orig
A P C IND…
Assg.curr
Minnesota …
Entity
unknown
Referenced by
2
References
2
Maint.:
n/a
The ornamental design for an electronic marker for buried utilities, as shown and described.

FIG. 1 is a perspective view of an electronic marker for buried utilities showing my new design.

FIG. 2 is a perspective view showing the side opposite that shown by FIG. 1.

FIG. 3 is an elevational view thereof on an enlarged scale.
INVENTORS:

Marks, Barry M.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
6690278, Dec 28 2001 Gas Technology Institute Electronic marker for metallic valve box covers
D969652, Apr 13 2020 Fence Post, LLC Networked road marker
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1365579,
4028707, Jan 30 1974 The Ohio State University Antenna for underground pipe detector
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 24 1980MARKS BARRY M A P C INDUSTRIES, INC ASSIGNMENT OF ASSIGNORS INTEREST 0038250410 pdf
Sep 26 1980A.P.C. Industries, Inc.(assignment on the face of the patent)
Mar 01 1984A P C INDUSTRIES, INC ,Minnesota Mining and Manufacturing CompanyMERGER SEE DOCUMENT FOR DETAILS 0043410332 pdf
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