USD308835SExpiredUtility

Heat detector

Assignee: PITTWAY CORPPriority: Aug 10, 1987Filed: Aug 10, 1987Granted: Jun 26, 1990

Est. expiryAug 10, 2007(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for a heat detector, as shown and described.

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