USD247045SExpiredUtility

Portable heater

80
Assignee: KOEHRING COPriority: Aug 8, 1975Filed: Aug 8, 1975Granted: Jan 24, 1978
Est. expiryAug 8, 1995(expired)· nominal 20-yr term from priority
Inventors:Eugene C. Briggs
80
PatentIndex Score
14
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable heater, as shown.

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