obtained directly by means of the process.
22. Scope of Protection:
(1) The scope of the protection conferred by the patent shall be
determined by the terms of the claims.
(2) The description and the drawings included in the patent shall be used
to interpret the claims.
23. Limitation of Rights Under the Patent:
(1) The rights under a patent shall only extend to acts done for industrial
or commercial purposes.
(2) The rights under a patent shall not extend to acts in respect of the
product covered by the patent after the product has been lawfully sold in
the Democratic Republic of the Sudan nevertheless, insofar as the patent
also concetns a special application of the product, this application shall
continue to be reserved to the registered owner of the patent.
24. Rights Derived from Prior Manufacture Use:
Any person who, at the date of the filing of the patent application by
another person, or at the date of priority claimed in respect of such validly
application, was, in good faith, manufacturing the product or applying the
process, which is the subject of the invention, or had made serious
preparations with a view to such manufacture or use, shall, despite the
patent, have the right to continue such acts
and, with respect to products obtained thereby, to perform the other acts
referred to in section 21. This right is only transferable with the
undertaking which is the
beneficiary of the right.
Chapter Six:Duration pf Patent and Fees
25. Duartion of Patent and Fees:
(1) A patent shall expire at the end of the twentieth year from the date of
the filing of the application, subject to the payment of the annual fees as
prescribed in the Regulations.
(2) A period of grace of six months shall be granted for the payment of
the annual fees upon payment of a surcharge as prescribed in the
Regulation.
(3) The lapse of a patent for non-payment of fees shall be published in the
Gazette by the Patent Office as soon as Possible.
Chapter Seven: Tranfer of Patent Applications and Patents; Joint
Ownership of Patents