Hi Ivo,
I had looked at that link on the other topic, but I saw another link on Google from the link you showed.
In between the lines it says that IVIMA changed its name to NOVA IVIMA in 1986.
So the IVIMA mark must be before 1986.
"The glass plant in Marinha Grande IVIMA
(Founded in 1895 - abandoned around 2003)
NOVA IVIMA in 1998 by ATLANTIS
GROUP bought around 2003 and abandoned"