What is the read range for a typical RFID tag?

There really is no such thing as a "typical" RFID tag, and the read range depends on whether the tag is active or passive. Active tags broadcast a signal, so they have a much longer read range—300 feet or more—than passive tags. The read range of passive tags depends on many factors: the frequency of operation, the power of the reader, interference from other RF devices and so on. In general, low-frequency and high-frequency tags are read from within three feet (1 meter) and UHF tags are read from 5 to 20 feet. Readers with phased array antennas can increase the read range of passive tags to 60 feet or more.
The range provided by passive RFID tags that GearEye uses may reach 2-3 meters which is totally enough to scan your bag, find your wallet around you, or identify your items in a drawer