Usually if a company closes, for whatever reason, copyright of works it owns will return to the creator. If there is no way to ascertain who this is, then you may be ok to re-use the item, but there is still an element of risk in doing so, as the copyright owner may come forward. The risk level would also be related to what use you wish to make of the logo. If you wanted to use it for commercial purposes there is likely to be a higher risk for you than if it were for non-commercial purposes.
Kevster wrote: »
Heya, I got a reply from the person looking after copyright at my university:
They also said to try these websites (but they are for UK, I think):http://wck2.companieshouse.gov.uk/http://www.ipo.gov.uk/tm/t-find/t-find-text/
The Act contains changes to UK copyright law which permit the commercial exploitation of images where information identifying the owner is missing, so-called "orphan works", by placing the work into what's known as "extended collective licensing" schemes