USD376842SExpiredUtility

Heat recovery ventilator

90
Assignee: NUTECH ENERGY SYSTEMS INCPriority: Apr 12, 1995Filed: Apr 12, 1995Granted: Dec 24, 1996
Est. expiryApr 12, 2015(expired)· nominal 20-yr term from priority
Inventors:John C. FranklinPeter Karl GrinbergsGrant W. Miles
90
PatentIndex Score
51
Cited by
26
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a heat recovery ventilator, as shown.

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