USD313271SExpiredUtility
Heater
Individually held — no corporate assignee on recordPriority: May 25, 1988Filed: Nov 23, 1988Granted: Dec 25, 1990
Est. expiryMay 25, 2008(expired)· nominal 20-yr term from priority
Inventors:Hans-Ulrich Schade
37
PatentIndex Score
3
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a heater, as shown.
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