replacement double pane windows

[mrfixit]

need to replace 3 double pane windows, that have got moisture in between the windows, the problems is this I can not find any manufacturing labels on the windows, other than a code that says POLYPANE-85-3-CBA, can anyone tell me what this means, because I feel that these windows may still be under warranty, thanks

[Greg]

I don't know specifically what it means but I would read it as Polypane being the manufacturer and the date of manufacture as March of 1985. If I remember right, the typical warranty (in California)in 1985 was five years. Thiis isn't what you wanted to hear but it is something!