USD304078SExpiredUtility

Optical zone marker

48
Individually held — no corporate assignee on recordPriority: May 4, 1987Filed: May 4, 1987Granted: Oct 17, 1989
Est. expiryMay 4, 2007(expired)· nominal 20-yr term from priority
Inventors:Ronald P. Jensen
48
PatentIndex Score
5
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an optical zone marker, as shown and described.

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