USPTO trademark record

KEFLEX

Dead mark · Owner U. S. FLEXIBLE METALLIC TUBING CO. · Classes 6

Mark details

Owner: U. S. FLEXIBLE METALLIC TUBING CO.
Serial number: 71678168
Registration number: 0613391
Status: EXPIRED (dead)
Classes: 6 (Metal goods)
Filed: 1954-12-10
Registered: 1955-10-04
Goods / services: FLEXIBLE METALLIC BELLOWS FOR DUCTS, VIBRATION ABSORBING FLEXIBLE METALLIC TUBING, EXPANSION JOINTS, MISALIGNMENT TUBING ASSEMBLIES, FLEXIBLE ELBOWS [ , AND METAL AVIATION FUEL AND AIR LINES ]

Register data as of 2026-11-09. Records can trail live filings — check the official USPTO search for the latest status before filing.

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