USD260895SExpiredUtility

Directional annular slot antenna

80
Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY FIELD OPERATIONS BUREAUPriority: Mar 14, 1979Filed: Mar 14, 1979Granted: Sep 22, 1981
Est. expiryMar 14, 1999(expired)· nominal 20-yr term from priority
Inventors:Arthur LuedtkeWilliam F. Bentley
80
PatentIndex Score
18
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a directional annular slot antenna, as shown.

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