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 *1st civilizations developed in 4 separate river valleys. Each of these river valleys offered a mild climate and a water highway to other places. Water from the rivers also could be used for drinking and for cooking food. Each of these valleys was also a flood plain where an *overflowing river deposited fertile soil.