If they simply stopped paying his invoices as the article states, then that means the consultant had already done work that he still hasn't been paid for. Regar

If they simply stopped paying his invoices as the article states, then that means the consultant had already done work that he still hasn't been paid for. Regardless of who owns the copyright, if the company still hasn't paid him for those invoices, they have no claim whatsoever to those last few weeks of work, regardless of any contract.