Previous company name

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Previous company name",
  "properties": {
    "company_number": {
      "type": "string",
      "description": "The company number of the dissolved company"
    },
    "ceased_on": {
      "type": "string",
      "format": "date",
      "description": "The date that the company ceased being known under the company name"
    },
    "effective_from": {
      "type": "string",
      "format": "date",
      "description": "The date that the company started being known under the company name"
    },
    "name": {
      "type": "string",
      "description": "The previous name of the company"
    }
  }
}