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.
Chapter 2 - The First River-Valley Civilizations, 3500â1500 B.C.E. I. Mesopotamia. A. Settled Agriculture in an Unstable Landscape. 1. Mesopotamia is the alluvial plain area alongside and between the Tigris and. Euphrates Rivers. The area is a difficult environment for agriculture because there. is little rainfall, the rivers flood at the wrong time for grain agriculture, and the. rivers change course unpredictably.