| Serial Number | 99354143 |
| Word Mark | OPTIMALSTACK |
| Filing Date | Sunday, August 24, 2025 |
| Status | 681 - PUBLICATION/ISSUE REVIEW COMPLETE |
| Status Date | Monday, February 9, 2026 |
| Registration Number | 0000000 |
| Registration Date | NOT AVAILABLE |
| Mark Drawing | 4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form |
| Published for Opposition Date | Tuesday, March 3, 2026 |
| Goods and Services | Dietary supplement drink mixes; Nutraceuticals for use as a dietary supplement; Dietary and nutritional supplements containing amino acids, derivatives of amino acids, salts of amino acids, guanidino amino acids, derivatives of guandino amino acids, salts of guandino amino acids, guandinocarboxylic acids, derivatives of guandinocarboxylic acids, salts of guandinocarboxylic acids, creatine, derivatives of creatine, salts of creatine, guandinoacetic acid, derivatives of guandinoacetic acid, salts of guandinoacetic acid, guanidines and guanidinecontaining compounds; Health food supplements; Dietary and nutritional supplements containing hydroxy methylbutyrate; Dietary supplements |
| International Class | 005 - Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes; dietetic substances adapted for medical use, food for babies; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides. |
| US Class Codes | 005, 006, 018, 044, 046, 051, 052 |
| Class Status Code | 6 - Active |
| Class Status Date | Sunday, August 24, 2025 |
| Primary Code | 005 |
| First Use Anywhere Date | Friday, October 25, 2024 |
| First Use In Commerce Date | Friday, April 11, 2025 |
| Party Name | Optimal Labs, LLC |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Purcellville, VA 20134 |
| Event Date | Event Description |
| Sunday, August 24, 2025 | NEW APPLICATION ENTERED |
| Sunday, August 24, 2025 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Sunday, August 24, 2025 | APPLICATION FILING RECEIPT MAILED |
| Thursday, January 8, 2026 | ASSIGNED TO EXAMINER |
| Thursday, January 8, 2026 | NON-FINAL ACTION WRITTEN |
| Thursday, January 8, 2026 | NON-FINAL ACTION E-MAILED |
| Thursday, January 8, 2026 | NOTIFICATION OF NON-FINAL ACTION E-MAILED |
| Tuesday, February 3, 2026 | TEAS RESPONSE TO OFFICE ACTION RECEIVED |
| Tuesday, February 3, 2026 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Tuesday, February 3, 2026 | TEAS/EMAIL CORRESPONDENCE ENTERED |
| Wednesday, February 4, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |