Bottom line: everything becomes public domain after eight years. Before then, you'll be able to search/view/download up to 500 cases per day through either a web interface or API. As far as I know there's no licensing on the individual cases you download.
For academic researchers, before the eight years are up, we can also provide a full data dump -- you just have to sign an agreement not to redistribute bulk data.
For academic researchers, before the eight years are up, we can also provide a full data dump -- you just have to sign an agreement not to redistribute bulk data.