USD322676SExpiredUtility
Infrared heating unit
Individually held — no corporate assignee on recordPriority: May 22, 1989Filed: May 22, 1989Granted: Dec 24, 1991
Est. expiryMay 22, 2009(expired)· nominal 20-yr term from priority
Inventors:John Chambers
77
PatentIndex Score
17
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an infrared heating unit, as shown and described.
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