Patent Cooperation Treaty (PCT) Update


                       Accession by Antigua and Barbuda

   The United States Patent and Trademark Office received notification from
the World Intellectual Property Organization (WIPO) that the Government
of Antigua and Barbuda deposited its instrument of accession to the PCT
on December 17, 1999. Antigua and Barbuda will become a Contracting
State of the PCT on March 17, 2000. Consequently, nationals and
residents of Antigua and Barbuda are entitled to file international
applications under the PCT on and after March 17, 2000, and from the
same date it is possible to file international applications designating
and electing Antigua and Barbuda (country code: AG).


                        Listing of PCT Member Countries

                                     Date of Deposit      Entry into
Country               Instrument     of Instrument        Force1

(1) Central African   Accession      15 September 1971    24 January 1978
Republic2
(2) Senegal2          Ratification   08 March 1972        24 January 1978
(3) Madagascar        Ratification   27 March 1972        24 January 1978
(4) Malawi5           Accession      16 May 1972          24 January 1978
(5) Cameroon2         Accession      15 March 1973        24 January 1978
(6) Chad2             Accession      12 February 1974     24 January 1978
(7) Togo2             Ratification   28 January 1975      24 January 1978
(8) Gabon2            Accession      06 March 1975        24 January 1978
(9) United States     Ratification   26 November 1975     24 January 1978
of America
(10) Germany3         Ratification   19 July 1976         24 January 1978
(11) Congo2           Accession      08 August 1977       24 January 1978
(12) Switzerland3     Ratification   14 September 1977    24 January 1978
(13) United Kingdom3  Ratification   24 October 1977      24 January 1978
(14) France3          Ratification   25 November 1977     25 February 1978
(15) Russian          Ratification   29 December 1977     29 March 1978
Federation6
(16) Brazil           Ratification   09 January 1978      09 April 1978
(17) Luxembourg3      Ratification   31 January 1978      30 April 1978
(18) Sweden3          Ratification   17 February 1978     17 May 1978
(19) Japan            Ratification   01 July 1978         01 October 1978
(20) Denmark3         Ratification   01 September 1978    01 December 1978
(21) Austria3         Ratification   23 January 1979      23 April 1979
(22) Monaco3          Ratification   22 March 1979        22 June 1979
(23) Netherlands3     Ratification   10 April 1979        10 July 1979
(24) Romania          Ratification   23 April 1979        23 July 1979
(25) Norway           Ratification   01 October 1979      01 January 1980
(26) Liechtenstein3   Accession      19 December 1979     19 March 1980
(27) Australia        Accession      31 December 1979     31 March 1980
(28) Hungary          Ratification   27 March 1980        27 June 1980
(29) Democratic       Accession      08 April 1980        08 July 1980
People's Republic of
Korea (North Korea)
(30) Finland          Ratification   01 July 1980         01 October 1980
(31) Belgium3         Ratification   14 September 1981    14 December 1981
(32) Sri Lanka        Accession      26 November 1981     26 February 1982
(33) Mauritania2      Accession      13 January 1983      13 April 1983
(34) Sudan5           Accession      16 January 1984      16 April 1984
(35) Bulgaria         Accession      21 February 1984     21 May 1984
(36) Republic of      Accession      10 May 1984          10 August 1984
Korea (South Korea)
(37) Mali2            Accession      19 July 1984         19 October 1984
(38) Barbados         Accession      12 December 1984     12 March 1985
(39) Italy3           Ratification   28 December 1984     28 March 1985
(40) Benin2           Accession      26 November 1986     26 February 1987
(41) Burkina Faso2    Accession      21 December 1988     21 March 1989
(42) Spain3           Accession      16 August 1989       16 November 1989
(43) Canada           Ratification   02 October 1989      02 January 1990
(44) Greece3          Accession      09 July 1990         09 October 1990
(45) Poland           Accession      25 September 1990    25 December 1990
(46) Cote d'Ivoire2   Ratification   31 January 1991      30 April 1991
(47) Guinea2          Accession      27 February 1991     27 May 1991
(48) Mongolia         Accession      27 February 1991     27 May 1991
(49) Czech Republic   Declaration4   18 December 1992     01 January 1993
(50) Ireland3         Ratification   01 May 1992          01 August 1992
(51) Portugal3        Accession      24 August 1992       24 November 1992
(52) New Zealand      Accession      01 September 1992    01 December 1992
(53) Ukraine          Declaration4   21 September 1992    25 December 1991
(54) Viet Nam         Accession      10 December 1992     10 March 1993
(55) Slovakia         Declaration4   30 December 1992     01 January 1993
(56) Niger2           Accession      21 December 1992     21 March 1993
(57) Kazakstan6       Declaration4   16 February 1993     25 December 1991
(58) Belarus6         Declaration4   14 April 1993        25 December 1991
(59) Latvia           Accession      07 June 1993         07 September 1993
(60) Uzbekistan       Declaration4   18 August 1993       25 December 1991
(61) China            Accession      01 October 1993      01 January 1994
(62) Slovenia         Accession      01 December 1993     01 March 1994
(63) Trinidad and     Accession      10 December 1993     10 March 1994
Tobago
(64) Georgia          Declaration4   18 January 1994      25 December 1991
(65) Kyrgyzstan6      Declaration4   14 February 1994     25 December 1991
(66) Republic of      Declaration4   14 February 1994     25 December 1991
Moldova6
(67) Tajikistan       Declaration4   14 February 1994     25 December 1991
(68) Kenya5           Accession      08 March 1994        08 June 1994
(69) Lithuania        Accession      05 April 1994        05 July 1994
(70) Armenia6         Declaration4   17 May 1994          25 December 1991
(71) Estonia          Accession      24 May 1994          24 August 1994
(72) Liberia          Accession      27 May 1994          27 August 1994
(73) Swaziland5       Accession      20 June 1994         20 September 1994
(74) Mexico           Accession      01 October 1994      01 January 1995
(75) Uganda5          Accession      09 November 1994     09 February 1995
(76) Singapore        Accession      23 November 1994     23 February 1995
(77) Iceland          Accession      23 December 1994     23 March 1995
(78) Turkmenistan6    Declaration4   01 March 1995        25 December 1991
(79) The former       Accession      10 May 1995          10 August 1995
Yugoslav Republic
of Macedonia
(80) Albania          Accession      04 July 1995         04 October 1995
(81) Lesotho5         Accession      21 July 1995         21 October 1995
(82) Azerbaijan6      Accession      25 September 1995    25 December 1995
(83) Turkey           Accession      01 October 1995      01 January 1996
(84) Israel           Ratification   01 March 1996        01 June 1996
(85) Cuba             Accession      16 April 1996        16 July 1996
(86) Saint Lucia      Accession      30 May 1996          30 August 1996
(87) Bosnia and       Accession      7 June 1996          7 September 1996
Herzegovina
(88) Federal          Ratification   01 November 1996     01 February 1997
Republic of
Yugoslavia7
(89) Ghana5           Accession      26 November 1996     26 February 1997
(90) Zimbabwe5        Accession      11 March 1997        11 June 1997
(91) Sierra Leone     Accession      17 March 1997        17 June 1997
(92) Indonesia        Accession      05 June 1997         05 September 1997
(93) Gambia5          Accession      09 September 1997    09 December 1997
(94) Guinea-Bissau    Accession      12 September 1997    12 December 1997
(95) Cyprus           Accession      01 January 1998      01 April 1998
(96) Croatia          Accession      01 April 1998        01 July 1998
(97) Grenada          Accession      22 June 1998         22 September 1998
(98) India            Accession      07 September 1998    07 December 1998
(99) United Arab      Accession      10 December 1998     10 March 1999
Emirates
(100) Republic of     Accession      16 December 1998     16 March 1999
South Africa
(101) Republic of     Accession      03 May 1999          03 August 1999
Costa Rica
(102) Commonwealth of Accession      07 May 1999          07 August 1999
Dominica
(103) United Republic Accession      14 June 1999         14 September 1999
of Tanzania
(104) Morrocco        Accession      08 July 1999         08 October 1999
(105) Algeria         Ratification   08 December 1999     08 March 2000
(106) Antigua and     Accession      17 December 1999     17 March 2000
Barbuda

1 Although the PCT entered into force on January 24, 1978, the Assembly
of the PCT Union fixed June 1, 1978, as the date from which
international applications could be filed and demands for international
preliminary examination could be submitted.

2 Member of African Intellectual Property Organization (OAPI) regional
patent system.

3 Member of European Patent Convention (EPC) regional patent system.

4 Declaration of continued application.

5 Member of African Regional Industrial Property Organization (ARIPO)
regional patent system.

6 Member of Eurasian Patent Organization (EAPO) regional patent system.

7 The Federal Republic of Yugoslavia is comprised of the Republics of
Serbia and Montenegro. The World Intellectual Property Organization has
utilized the two-letter code "YU" to refer to the Federal Republic of
Yugoslavia becoming a party to the Patent Cooperation Treaty. The United
States understands that the scope of the territory covered by the
designation encompasses only the Republics of Serbia and Montenegro.

January 21, 2000                                          Q. TODD DICKINSON
                                        Assistant Secretary of Commerce and
                                     Commissioner of Patents and Trademarks