USD250651SExpiredUtility
Transparency viewer
Individually held — no corporate assignee on recordPriority: Feb 7, 1977Filed: Feb 7, 1977Granted: Dec 26, 1978
Est. expiryFeb 7, 1997(expired)· nominal 20-yr term from priority
Inventors:Bruce A. Rosenthal
41
PatentIndex Score
2
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a transparency viewer, as shown and described.
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