A free PatBot demo version is available. The demo has one restriction: You can only download patent numbers with no more than 8 digits ending with "00".
You can also ask for a free 28 day test licence for the full version.
Download and save the installation program. Start the installation program and follow the instructions.
Since the installation makes no change in your system files and puts on no files outside of the own directory, the demo version can be simply uninstalled after the test. You can uninstall PatBot by using Window's own Uninstall utility or by simply deleting the PatBot folder.
If you have questions or problems with the demo version, please don't hesitate contacting me.