USPTO serial 98800522
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The USPTO has issued a Notice of Allowance. To complete registration you generally need to file a Statement of Use or an extension request before the deadline.
Deadline: November 26th, 2026
Walter Zackary Farr
Avon Park, FL, US
Walter Zackary Farr
Avon Park, FL, US
| Class | Description | Status | First use |
|---|---|---|---|
| 001 | Processed biochar for industrial use as a filtration medium for water treatment systems; vegetable-based filtering materials in the nature of biochar for use exclusively in municipal, commercial, and industrial water filtration and contaminant removal applications; none of the foregoing for use as fertilizers, soil additives, soil amendments, or for agricultural or horticultural purposes | ACTIVE | — |
| Date | Code | Event |
|---|---|---|
| May 26, 2026 | NOAM | NOA E-MAILED - SOU REQUIRED FROM APPLICANT |
| Mar 31, 2026 | NPUB | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
| Mar 31, 2026 | PUBO | PUBLISHED FOR OPPOSITION |
| Mar 25, 2026 | NONP | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Mar 10, 2026 | PBCR | WITHDRAWN FROM PUB - OG REVIEW QUERY |
| Feb 20, 2026 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Jan 29, 2026 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED |
| Jan 29, 2026 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Jan 29, 2026 | ERFR | TEAS REQUEST FOR RECONSIDERATION RECEIVED |
| Nov 15, 2025 | GNFN | NOTIFICATION OF FINAL REFUSAL EMAILED |
| Nov 15, 2025 | GNFR | FINAL REFUSAL E-MAILED |
| Nov 15, 2025 | CNFR | FINAL REFUSAL WRITTEN |
| Jun 24, 2025 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED |
| Jun 23, 2025 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Jun 23, 2025 | TROA | TEAS RESPONSE TO OFFICE ACTION RECEIVED |
| Apr 21, 2025 | GNRN | NOTIFICATION OF NON-FINAL ACTION E-MAILED |
| Apr 21, 2025 | GNRT | NON-FINAL ACTION E-MAILED |
| Apr 21, 2025 | CNRT | NON-FINAL ACTION WRITTEN |
| Apr 16, 2025 | DOCK | ASSIGNED TO EXAMINER |
| Apr 15, 2025 | NWOS | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Oct 14, 2024 | NWAP | NEW APPLICATION ENTERED |