Revisions
The Manual of Classification is usually published in full as the Basic Manual of this system every 2 years. Basic Manuals reflect current classifications as of December of even-numbered years. Revisions to the Basic Manual occur at 6-month intervals. Pages of the Manual revisions are inserted as replacements to update the previous versions.
Read more about this topic: United States Patent Classification
Famous quotes containing the word revisions:
“The lore of our fathers is a fabric of sentences. In our hands it develops and changes, through more or less arbitrary and deliberate revisions and additions of our own, more or less directly occasioned by the continuing stimulation of our sense organs. It is a pale gray lore, black with fact and white with convention. But I have found no substantial reasons for concluding that there are any quite black threads in it, or any white ones.”
—Willard Van Orman Quine (b. 1908)