# Relationship history for MSHA mine 3606384

Current hierarchy: **Brian J  Monaghan → Carbonite Filter Corp → Carbonite Filter Corporation Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Carbonite Filter Corp → Carbonite Filter Corporation Plant; 1977-04-01 to 1986-05-26; source msha-controller-operator-history
- **controller_controls_mine:** G Robert  McMinn → Carbonite Filter Corporation Plant; 1977-04-01 to 1986-05-26; source msha-controller-operator-history
- **controller_controls_operator:** G Robert  McMinn → Carbonite Filter Corp; 1977-04-01 to 1986-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Carbonite Filter Corp → Carbonite Filter Corporation Plant; 1986-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Monaghan → Carbonite Filter Corporation Plant; 1986-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Monaghan → Carbonite Filter Corp; 1986-05-27 to current/open; source msha-controller-operator-history