U.S. Supreme Court
Hoofnagle v. Anderson, 20 U.S. 7 Wheat. 212 212 (1822)
Hoofnagle v. Anderson
20 U.S. (7 Wheat.) 212
A patent is a title from its date, and conclusive against all those whose rights do not commence previous to its emanation.
Courts of equity consider an entry as the commencement of title, and will sustain a valid entry against a patent founded on a prior defective entry if issued after such valid entry was made.
But they never sustain an entry made after the date of the patent.
This case attempted to be taken out of the general rule upon the ground that the equity of the party claiming under the entry commenced before the legal title of the other party was consummated.
But the circumstances of the case and the equity arising out of it were not deemed by the court sufficient to take it out of the general rule.