XRS
Live / Applied — Fifth extension granted (statement of use) (as of 12 Feb 2026)
What this means for you
Not registered yet, but its 28 Jan 2022 filing date beats anything filed after it. If it registers, the owner can stop confusingly similar uses in the classes it covers.
Record
- Serial number
- 97244012
- Mark type
- Stylized text
- Filed
- 28 Jan 2022
- Published for opposition
- 31 Jan 2023
- Attorney of record
- B. Brett Heavner
Goods and services
- Class 001 — Chemicals: Biological tissue cultures other than for medical or veterinary purposes; cells for scientific, laboratory or medical research
- Class 005 — Pharmaceuticals: Cells for medical or clinical use; biological tissue cultures for medical use
- Class 010 — Medical apparatus: Medical devices in the nature of an adjustable microscale encapsulation apparatus used to manipulate and study complex patient-derived cell tissue by measuring cell viability and drug response to aid in the development of personalized patient therapy and treatment of tumors
- Class 042 — Scientific and technological services: Pharmaceutical drug development and testing of anti-cancer drugs
- Class 044 — Medical, beauty and agricultural services: Medical testing for diagnostic purposes and medical treatment services in the field of oncology
Owner
- Xilis, Inc., Durham, NC, US
- Xilis, Inc., Durham, NC, US
Prosecution history
- 13 Feb 2026 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 12 Feb 2026 — SOU EXTENSION 5 GRANTED
- 25 Sept 2025 — SOU EXTENSION 5 FILED
- 11 Feb 2026 — CASE ASSIGNED TO INTENT TO USE PARALEGAL
- 26 Sept 2025 — SOU TEAS EXTENSION RECEIVED
- 28 Mar 2025 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 27 Mar 2025 — SOU EXTENSION 4 GRANTED
- 27 Mar 2025 — SOU EXTENSION 4 FILED
- 27 Mar 2025 — SOU TEAS EXTENSION RECEIVED
- 21 Jun 2024 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 21 Jun 2024 — SOU EXTENSION 3 GRANTED
- 21 Jun 2024 — SOU EXTENSION 3 FILED
- 21 Jun 2024 — SOU TEAS EXTENSION RECEIVED
- 26 Mar 2024 — NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
- 25 Mar 2024 — SOU EXTENSION 2 GRANTED