I have checked
uspto.gov and looking up the paying of the maintenance fees gives
No fees paid for selected year - MF Stmt unavailable
Which I am not sure is an error or whether it means the maintance fee was actually not paid. Additionally Google Patents suggests the patent has lapsed, however I would expect the overview on the patent on
uspto.gov to make some explicit mention if it has indeed expired, which is not the case, so just wished to double check whether my understanding is correct.