Who owns the SX trademark?

The SX trademark is owned by LOWELL G. SIDWELL.

What class is the SX trademark registered in?

The SX trademark is registered in Class 001 (Chemicals for industrial, scientific & agricultural use).

What is the serial number for SX?

The USPTO serial number for SX is 72129986.

What is the registration number for SX?

SX is registered under USPTO registration number 736952.

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Updated Sep 16, 2026·15 searches this week

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USPTO Trademark Record

ABANDONED

SX

SN 72129986·Reg 736952·Filed Oct 16, 1961

Owner LOWELL G. SIDWELL

Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compositions; tempering and soldering preparations; substances for tanning animal skins and hides; adhesives for use in industry; compost, manures, fertilizers; biological preparations for use in industry and science.

SX (Serial No. 72129986), Registration No. 736952, is a abandoned US trademark filed on Oct 16, 1961 by LOWELL G. SIDWELL. This trademark covers Class 001 (Chemicals for industrial, scientific & agricultural use).

Conflict Analysis

Full conflict analysis for SX (SN 72129986) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

SX (Reg. #736952) is an abandoned US trademark that was filed in 1961 but has since been abandoned. The mark covers Class 001 (Chemicals for industrial, scientific & agricultural use). Goods and services include Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocesse....

FILED

Oct 16, 1961

SERIAL

72129986

REG#

736952

REGISTERED

Sep 04, 1962

Filing Information

StatusABANDONED

Filing DateOct 16, 1961

Serial Number72129986