On my windows, the "Kinro" logo is printed on the interior latch. Their logo is a barely legible script.
I placed my vinyl order yesterday from this (rather chaotic) website:
Which is to say that I called them and placed the order because they only do it over the phone. Which it turns out is great, because the person I spoke to was really helpful, patient, and knowledgeable. He confirmed my van has the series 8500 windows and that replacing the vinyl was a piece of cake. Vinyl was $2.39 a linear foot. Not cheap, but if it stops my windows from leaking: priceless.
Just to clarify, this is to replace the vinyl glazing strip that holds the window pane in and not the seal between window frame and van body. I'll be getting to that eventually, I'm sure.
I'll take photos and report back when I do the install.