PRO-BLUE Trademark
PRO-BLUE is a USPTO trademark filed by DiversiTech Corporation. Status: Registered.
Prosecution Summary
**Trademark Summary** **PRO-BLUE** is the word mark for “Liquid Coil cleaner for HVAC applications.” The application (No. 88695896) was filed on November 18, 2019 and registered on December 22, 2020. The current status is **registered** (registration date is used to determine when post-registration maintenance documents are due). The owner listed is **DiversiTech Corporation**. There is **no legal proceeding listed** in the provided record. **Recent Activity** The mark was **published for opposition** on October 6, 2020 and subsequently **registered** on December 22, 2020. The record also includes a **TEAS change of correspondence** received on August 5, 2022, and a **courtesy reminder related to Section 8 (6-year) E-MAILED** dated December 22, 2025.
Trademark Facts
| Mark | PRO-BLUE |
|---|---|
| Serial Number | 88695896 |
| Registration Number | 6225327 |
| Status | Registered |
| Filing Date | 2019-11-18 |
| Registration Date | 2020-12-22 |
| Mark Type | Word |
| Nice Classes | 003 (Cosmetics) |
| Owner | DiversiTech Corporation |
| Attorney of Record | Benjamin P. Harbuck |
| Prosecution Events | 24 |
| Latest Event | REM1 on 2025-12-22 |
Goods & Services
Liquid Coil cleaner for HVAC applications