KNF
Summary of public USPTO data
- Owner
- KNIFE RIVER CORPORATION
- Status
- Live/Registered
- Serial number
- 97904296
- Registration number
- 8423950
- Filing date
- 2023-04-24
- Registration date
- 2026-09-01
- International classes
- 37, 42
Goods and services
Class 37
- Mining extraction
- rock, sand, gravel and hard rock quarry mining
- construction planning, managing and supervision
- construction of roads, streets, infrastructure, commercial and residential buildings and subdivisions, resorts, golf courses
- land reclamation
Class 42
- Mining exploration and mineral exploration services