USD312691SExpiredUtility

Threaded heatless concentrator

Assignee: SUPELCO INCPriority: Dec 16, 1987Filed: Dec 16, 1987Granted: Dec 4, 1990

Est. expiryDec 16, 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 threaded heatless concentrator, as shown and described.

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