Transitional Phrase

A transitional phrase, in United States patent law, is a phrase that links the preamble of a patent claim to the specific elements set forth in the claim which define what the invention itself actually is. The transitional phrase acts as a limitation on the claim, indicating whether a similar device, method, or composition infringes the patent if it contains more or fewer elements than the claim in the patent.

There are three kinds of transitional phrases: open, closed, and hybrid.

Read more about Transitional Phrase:  Closed Transition, Open Transition, Hybrid Transition, See Also

Famous quotes containing the words transitional and/or phrase:

    Postmodernism is, almost by definition, a transitional cusp of social, cultural, economic and ideological history when modernism’s high-minded principles and preoccupations have ceased to function, but before they have been replaced with a totally new system of values. It represents a moment of suspension before the batteries are recharged for the new millennium, an acknowledgment that preceding the future is a strange and hybrid interregnum that might be called the last gasp of the past.
    Gilbert Adair, British author, critic. Sunday Times: Books (London, April 21, 1991)

    “Five o’clock tea” is a phrase our “rude forefathers,” even of the last generation, would scarcely have understood, so completely is it a thing of to-day; and yet, so rapid is the March of the Mind, it has already risen into a national institution, and rivals, in its universal application to all ranks and ages, and as a specific for “all the ills that flesh is heir to,” the glorious Magna Charta.
    Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)