Finally, every program is threatened constantly by software
patents. States should not allow patents to restrict
development and use of software on general-purpose
omputers, but in those that do, we wish to avoid the special
anger that patents applied to a free program could make it
ffectively proprietary. To prevent this, the GPL assures that
atents cannot be used to render the program non-free. he
precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
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“This License” refers to version 3 of the GNU General Public
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Copyright” also means copyright-like laws that apply to
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The Corresponding Source need not include anything that
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2. Basic Permissions.
All rights granted under this License are granted for the term
of copyright on the Program, and are irrevocable provided
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The output from running a covered work is covered by this
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You may make, run and propagate covered works that you
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you must do so exclusively on your behalf, under your direction
and control, on terms that prohibit them from making any
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is permitted solely under the conditions stated below.
Sublicensing is not allowed; section 10 makes it unnecessary.
3. Protecting Users’ Legal Rights From anti-
Circumvention Law.
No covered work shall be deemed part of an effective
technological measure under any applicable law fulfilling
obligations under article 11 of the WIPO copyright treaty
adopted on 20 December 1996, or similar laws prohibiting or
restricting circumvention of such measures.
When you convey a covered work, you waive any legal
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the extent such circumvention is effected by exercising rights
under this License with respect to the covered work, and
you disclaim any intention to limit operation or modification of
the work as a means of enforcing, against the work’s users,
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4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program’s source
code as you receive it, in any medium, provided that you
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You may charge any price or no price for each copy that you
convey, and you may offer support or warranty protection
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