USD332998SExpiredUtility

Heating unit for use in melting and keeping hydrocolloid cartridges in liquid form

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Assignee: BELPORT CO INCPriority: Dec 31, 1990Filed: Dec 31, 1990Granted: Feb 2, 1993
Est. expiryDec 31, 2010(expired)· nominal 20-yr term from priority
Inventors:Robert Burridge
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PatentIndex Score
1
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a heating unit for use in melting and keeping hydrocolloid cartridges in liquid form, as shown and described.

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