Who owns the LIMESTONE trademark?

The LIMESTONE trademark is owned by LIMESTONE AI INC..

What class is the LIMESTONE trademark registered in?

The LIMESTONE trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for LIMESTONE?

The USPTO serial number for LIMESTONE is 99851842.

What is the registration number for LIMESTONE?

LIMESTONE is registered under USPTO registration number 0.

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Updated Oct 8, 2026·28 searches this week

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USPTO Trademark Record

PENDING

LIMESTONE

SN 99851842·Reg 0·Filed May 28, 2026

Owner LIMESTONE AI INC.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

LIMESTONE (Serial No. 99851842), Registration No. 0, is a pending US trademark filed on May 28, 2026 by LIMESTONE AI INC.. This trademark covers Class 042 (Scientific, technology & SaaS services).

Office Action response: December 23, 202675 days remaining

Mark Intelligence

LIMESTONE (Reg. #0) is a pending US trademark that was filed in 2026 and is currently under USPTO examination. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research....

FILED

May 28, 2026

SERIAL

99851842

REG#

Filing Information

StatusPENDING

Filing DateMay 28, 2026

Serial Number99851842

Registration No.0

Status DateSep 23, 2026

Mark TypeStandard characters