Indeed, that sounds familiar. I think Prontor may have ended production as well, leaving Copal as the only modern shutter available new once stocks of the others run out. Packard is still in production, available even in custom sizes from Hub photo. I think these have some non-photographic, non-printing-industry use that may be keeping them alive.
Anyone know about Melles Griot? They are a French company, I think, which produces (or once produced) shutters that look like Ilex shutters, I would guess using the tooling purchased from Ilex when it closed down. These aren't as good as Copal, but they do work, and an Ilex/Acme/Betax/Alphax #5 is often the only option for lenses that won't fit into a Copal 3.