Who owns the SILPHION trademark?

The SILPHION trademark is owned by ENA ATHLETICS LIMITED.

What class is the SILPHION trademark registered in?

The SILPHION trademark is registered in Class 025 (Clothing, footwear & headgear).

What is the serial number for SILPHION?

The USPTO serial number for SILPHION is 99181892.

What is the registration number for SILPHION?

SILPHION is registered under USPTO registration number 8124383.

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Section 8 declaration window

February 03, 2032

1913 days remaining

SIL

SILPHION

REGISTERED

Serial: 99181892
Reg: 8124383
Filed: May 13, 2025
Owner: ENA ATHLETICS LIMITED

Clothing, footwear, headwear.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 025Clothing, footwear & headgear

US codes: 022, 039

Clothing, footwear, headwear.

This description is as filed with the USPTO and defines the scope of trademark protection.

Status History

16 events

REGISTERED-PRINCIPAL REGISTER

Feb 03, 2026

Code R.PR

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Feb 03, 2026

Code NRCC

PUBLISHED FOR OPPOSITION

Dec 16, 2025

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 16, 2025

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Dec 10, 2025

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 17, 2025

Code CNSA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 16, 2025

Code TROA

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 16, 2025

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 16, 2025

Code TEME

NON-FINAL ACTION WRITTEN

Sep 27, 2025

Code CNRT

NON-FINAL ACTION E-MAILED

Sep 27, 2025

Code GNRT

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Sep 27, 2025

Code GNRN

ASSIGNED TO EXAMINER

Sep 25, 2025

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 21, 2025

Code NWOS

NEW APPLICATION ENTERED

May 13, 2025

Code NWAP

APPLICATION FILING RECEIPT MAILED

May 13, 2025

Code MAFR

SILPHION

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Full Goods & Services

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