GUT CORE
Live / Allowed — Second extension granted (statement of use) (as of 03 Sept 2026)
What this means for you
Approved and waiting on proof of use. It will register unless the applicant drops it, and its 06 Sept 2024 filing date already counts against anyone who files later.
Record
- Serial number
- 98737677
- Mark type
- Word mark
- Filed
- 06 Sept 2024
- Published for opposition
- 08 Jul 2025
- Attorney of record
- Timothy D. Sitzmann
Goods and services
- Class 001 — Chemicals: Biological preparations for use in the manufacture of food products, beverage products, supplements, functional food and beverage products, pharmaceuticals, and ingestible products for promoting gut and digestive health; Bioactive compounds in the nature of biological preparations for use in the manufacture of food products, beverage products, supplements, functional food and beverage products, pharmaceuticals, and ingestible products for promoting gut and digestive health
- Class 005 — Pharmaceuticals: Dietary and nutritional supplements; functional foods and beverages for use as nutritional and dietary supplements; nutritional and dietary supplements for use as ingredients in functional foods and beverages; pharmaceutical preparations for promoting gut, microbiome, and digestive health; Prebiotic supplements; Probiotic supplements; Prebiotics, probiotics, and fiber for use as an ingredients in the manufacture of dietary supplements, nutritional supplements, and functional food and beverage products
Owner
- Brightseed, Inc., South San Francisco, CA, US
- Brightseed, Inc., South San Francisco, CA, US
Prosecution history
- 03 Sept 2026 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 03 Sept 2026 — SOU EXTENSION 2 GRANTED
- 02 Sept 2026 — SOU EXTENSION 2 FILED
- 02 Sept 2026 — SOU TEAS EXTENSION RECEIVED
- 26 Feb 2026 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 26 Feb 2026 — SOU EXTENSION 1 GRANTED
- 26 Feb 2026 — SOU EXTENSION 1 FILED
- 26 Feb 2026 — SOU TEAS EXTENSION RECEIVED
- 02 Sept 2025 — NOA E-MAILED - SOU REQUIRED FROM APPLICANT
- 08 Jul 2025 — OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
- 08 Jul 2025 — PUBLISHED FOR OPPOSITION
- 02 Jul 2025 — NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
- 03 Jun 2025 — APPROVED FOR PUB - PRINCIPAL REGISTER
- 13 May 2025 — TEAS/EMAIL CORRESPONDENCE ENTERED
- 13 May 2025 — CORRESPONDENCE RECEIVED IN LAW OFFICE