USD297716SExpiredUtility

Filter flow indicating device

Individually held — no corporate assignee on recordPriority: Nov 6, 1985Filed: Nov 6, 1985Granted: Sep 20, 1988

Est. expiryNov 6, 2005(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a filter flow indicating device, as shown and described.

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