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Trademark Application · #225948

ENTONOX Trademark (Class 5) — Registered Status & Details

RegisteredClass 5Filed 14/12/1964WORD

Source: Indian Trademark Registry (ipindia.gov.in) · IP India record as of 09/07/2026 · Indexed 2026-07-09 · Last updated 9 Jul 2026

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§ 01 —

Trademark Fact Sheet

Trademark (as filed)
ENTONOXWORD
Application No.
225948
Filed
14/12/1964
Status
Registered
Class(es)
Class 5
TM Office
KOLKATA
Owner's state
West Bengal
TM type
WORD
Valid upto
14/12/2026
Published in Journal
Published in Journal No. : 434-0 Dated : 01/07/1967
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Goods & Services

Class 5

ANAESTHETIC AND ANALGESIC GASES.

§ 03 —

Owner

Name
THE BRITISH OXYGEN COMPANY LIMITED Body Incorporate1 trademark filed under this owner
Address
*****
State
West Bengal
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Application Timeline

Application filed
14/12/1964
Filed via Branch Office
Published for opposition
01/07/1967
Trade Marks Journal No. 434-0
Registration granted
08/02/1968
Certificate No. 90235
Next renewal due
14/12/2026
Indian trademarks must be renewed every 10 years. File TM-R 6-12 months ahead.
IP India record refreshed
09/07/2026
Latest server-side snapshot from the Indian Trademark Registry
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Filing claims & diligence

First use claim
Proposed to be used
Filing mode
Branch Office
Category
TRADE MARK
Registered

What does this status mean?

ENTONOX is a registered trademark in Class 5. The owner holds exclusive rights to use this mark for ANAESTHETIC AND ANALGESIC GASES. and can renew it to keep the protection in force. Planning a similar mark in Class 5? It may be blocked — check availability before you file.

Q & A

Frequently asked questions

The trademark ENTONOX (Application No. 225948) is owned by (1) THE BRITISH OXYGEN, as recorded in the Indian Trademark Registry. Trademark ownership in India is determined by the Trade Marks Act, 1999 and the Trade Marks Rules, 2017.

The current status of ENTONOX is "Registered". It was filed on 14/12/1964 at KOLKATA in Class 5. Status may change over time as the application moves through examination, publication, opposition and registration stages.

ENTONOX is filed in Class 5, covering: ANAESTHETIC AND ANALGESIC GASES.

ENTONOX covers: ANAESTHETIC AND ANALGESIC GASES.

The exact word "ENTONOX" is already on record at the Indian Trademark Registry under Application No. 225948. If you intend to use a similar mark for similar goods or services, you should conduct a comprehensive availability search and consult a trademark attorney before filing. Registerkaro offers a free availability check followed by professional filing.

ENTONOX is valid up to 14/12/2026. Indian trademarks are valid for 10 years from the date of registration and can be renewed indefinitely in 10-year blocks.

If ENTONOX is in the "Advertised before Acceptance" or "Accepted & Advertised" stage, you have a 4-month window from publication in the Trade Marks Journal to file an opposition (Form TM-O) at the same Trade Marks Registry office. Grounds typically include prior rights, descriptiveness or bad faith. Registerkaro can prepare and file a Notice of Opposition for you.

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