section 908(d), record the
document and return it with a certificate of recordation. The
recordation of any transfer or license under this paragraph gives all
persons constructive notice of the facts stated in the recorded document
concerning the transfer or license.

(2) In any case in which conflicting transfers of the exclusive rights
in a mask work are made, the transfer first executed shall be void as
against a subsequent transfer which is made for a valuable consideration
and without notice of the first transfer, unless the first transfer is
recorded in accordance with paragraph (1) within three months after the
date on which it is executed, but in no case later than the day before
the date of such subsequent transfer.

(d) Mask works prepared by an officer or employee of the United States
Government as part of that person's official duties are not protected
under this chapter, but the United States Government is not precluded
from receiving and holding exclusive rights in mask works transferred to
the Government under subsection (b).

Section 904. Duration of protection

(a) The protection provided for a mask work under this chapter shall
commence on the date on which the mask work is registered under section
908, or the date on which the mask work is first commercially exploited
anywhere in the world, whichever occurs first.

(b) Subject to subsection (c) and the provisions of this chapter, the
protection provided under this chapter to a mask work shall end ten
years after the date on which such protection commences under subsection
(a).

(c) All terms of protection provided in this section shall run to the
end of the calendar year in which they would otherwise expire.

Section 905. Exclusive rights in mask works

The owner of a mask work provided protection under this chapter has the
exclusive rights to do and to authorize any of the following:

(1) to reproduce the mask work by optical, electronic, or any other
means;

(2) to import or distribute a semiconductor chip product in which the
mask work is embodied; and

(3) to induce or knowingly to cause another person to do any of the acts
described in paragraphs (1) and (2).

Section 906. Limitation on exclusive rights: reverse engineering; first
sale

(a) Notwithstanding the provisions of section 905, it is not an
infringement of the exclusive rights of the owner of a mask work for-

(1) a person to reproduce the mask work solely for the p