Question: when did the royal proclamation of 1763 end?
Answer: with the American Revolutionary War, the American Revolutionary War, 1783

In the United States, the Royal Proclamation of 1763 ended with the American Revolutionary War because Great Britain ceded the land in question to the United States in the Treaty of Paris (1783).  Afterward, the U.S. government also faced difficulties in preventing frontier violence and eventually adopted policies similar to those of the Royal Proclamation. The first in a series of Indian Intercourse Acts was passed in 1790, prohibiting unregulated trade and travel in Native American lands. In 1823, the U.S. Supreme Court case Johnson v. M'Intosh established that only the U.S. government, and not private individuals, could purchase land