This will guide the process you'll use to apply for the patent. 4. File a provisional patent application. This offers a layer of protection in case someone later claims they had the idea before you did. As Issie Lapowsky points out, U.S patent law is a first-to-file system, not first-to-invent.
Ancient River Valley Civilizations Introduction. The term civilization separates cultures that were more developed and settled than the previous hunter-gatherer societies. The first civilizations arose around 4000 BC in four river valleys across the globe. This unit is designed to examine the rise of these early civilizations and the emerging social complexity of populous societies.
The early civilizations of Mesopotamia and Egypt were very similar, but they were also different in some ways. Both Mesopotamia and Egypt developed their civilizations centered on rivers, but these rivers were polar opposites. Mesopotamia was between two rivers called the Tigris and Euphrates rivers. Egyptâs civilization developed around the Nile River. The Tigris and Euphrates rivers differed from the Nile River.