Today's Word of the Day means...
"The Letters Patent were ... written upon open sheets of parchment, with the Great Seal pendent at the bottom ... [while] the 'Litteræ Clausæ,' or Letters Close, ... being of a more private nature, and addressed to one or two individuals only, were closed or folded up and sealed on the outside." [S.R. Scargill-Bird, "A Guide to the Principal Classes of Documents at the Public Record Office," 1891]The adj. sense of "open to view, plain, clear" is first recorded 1508; the verb "to obtain right to land" is attested from 1675. The meaning "copyright an invention" is first recorded 1822, from earlier meaning "obtain exclusive right or monopoly" (1789), a privilege granted by the Crown via letters patent.
patent pat·ent (pāt'nt)
A grant made by a government that confers upon the creator of an invention the sole right to make, use, and sell that invention for a set period of time.
An invention protected by such a grant.
Of, relating to, or being a nonprescription drug or other medical preparation that is often protected by a trademark.
(pāt'nt) Not blocked; open.
(pāt'nt ) Spreading open; expanded.
To obtain a patent on or for something, such as an invention.
To invent, originate, or be the proprietor of an idea.
To grant a patent to somone or for something.