Classes 521 - 532

Class From Sub To Sub Order No. Action Date
521 25 39 638 Established 1978-Aug-03
521 40 49.8 828 Established 1982-Mar-23
521 50 84 639 Established 1978-Aug-03
521 50.5 1018 Established 1986-Jan-07
521 84 915 Abolished 1983-Dec-13
521 84.1 915 Established 1983-Dec-13
521 85 109 639 Established 1978-Aug-03
521 109 915 Abolished 1983-Dec-13
521 109.1 915 Established 1983-Dec-13
521 110 189 639 Established 1978-Aug-03
521 901 921 639 Established 1978-Aug-03
522 1 189 1018 Established 1986-Jan-07
522 901 915 1018 Established 1986-Jan-07
523 1 527 828 Established 1982-Mar-23
524 1 575 828 Established 1982-Mar-23
524 575.5 915 Established 1983-Dec-13
524 576 882 828 Established 1982-Mar-23
524 900 924 828 Established 1982-Mar-23
524 925 929 915 Established 1983-Dec-13
525 1 6 697 Established 1979-Aug-08
525 1 6 828 Abolished 1982-Mar-23
525 7 8 828 Established 1982-Mar-23
525 10 32 697 Established 1979-Aug-08
525 32.1 32.2 828 Established 1982-Mar-23
525 33 54 697 Established 1979-Aug-08
525 54.1 54.51 828 Established 1982-Mar-23
525 55 111 697 Established 1979-Aug-08
525 111.5 828 Established 1982-Mar-23
525 112 133 697 Established 1979-Aug-08
525 133.5 828 Established 1982-Mar-23
525 134 167 697 Established 1979-Aug-08
525 167.5 828 Established 1982-Mar-23
525 168 301 697 Established 1979-Aug-08
525 301.5 828 Established 1982-Mar-23
525 302 324 697 Established 1979-Aug-08
525 326 864 Abolished 1982-Oct-26
525 326.1 326.9 864 Established 1982-Oct-26
525 327 864 Abolished 1982-Oct-26
525 327.1 327.9 864 Established 1982-Oct-26
525 328 864 Abolished 1982-Oct-26
525 328.1 328.9 864 Established 1982-Oct-26
525 329 864 Abolished 1982-Oct-26
525 329.1 329.9 864 Established 1982-Oct-26
525 330 864 Abolished 1982-Oct-26
525 330.1 330.9 864 Established 1982-Oct-26
525 331 864 Abolished 1982-Oct-26
525 331.1 331.9 864 Established 1982-Oct-26
525 332 864 Abolished 1982-Oct-26
525 332.1 332.9 864 Established 1982-Oct-26
525 333 864 Abolished 1982-Oct-26
525 333.1 333.9 864 Established 1982-Oct-26
525 334 864 Abolished 1982-Oct-26
525 334.1 864 Established 1982-Oct-26
525 335 336 864 Abolished 1982-Oct-26
525 337 358 697 Established 1979-Aug-08
525 359 792 Abolished 1981-May-28
525 359.1 359.6 792 Established 1981-May-28
525 360 420 697 Established 1979-Aug-08
525 420.5 828 Established 1982-Mar-23
525 421 444 697 Established 1979-Aug-08
525 440 1866 Abolished 2007-Sep-04
525 440.1 440.16 1866 Established 2007-Sep-04
525 444.5 828 Established 1982-Mar-23
525 445 501 697 Established 1979-Aug-08
525 501.5 828 Established 1982-Mar-23
525 502 517 697 Established 1979-Aug-08
525 517.5 828 Established 1982-Mar-23
525 518 540 697 Established 1979-Aug-08
525 901 941 697 Established 1979-Aug-08
525 942 787 Established 1981-Apr-27
526 1 352 517 Established 1976-Apr-19
526 11.1 11.2 637 Abolished 1978-Aug-03
526 28 637 Established 1978-Aug-03
526 31 40 637 Established 1978-Aug-03
526 47.1 47.9 605 Established 1977-Oct-07
526 48 605 Abolished 1977-Oct-07
526 48.1 48.4 605 Established 1977-Oct-07
526 52.1 52.5 605 Established 1977-Oct-07
526 123 125 1566 Abolished 1995-Sep-05
526 123.1 125.8 1566 Established 1995-Sep-05
526 169.1 169.3 605 Established 1977-Oct-07
526 218 898 Abolished 1983-Aug-04
526 218.1 898 Established 1983-Aug-04
526 219.1 219.6 898 Established 1983-Aug-04
526 229.5 605 Established 1977-Oct-07
526 230.5 605 Established 1977-Oct-07
526 232.1 605 Established 1977-Oct-07
526 232.3 605 Established 1977-Oct-07
526 232.5 605 Established 1977-Oct-07
526 238.1 238.2 828 Established 1982-Mar-23
526 238.21 238.23 828 Established 1982-Mar-23
526 243 244 637 Established 1978-Aug-03
526 256 257 637 Established 1978-Aug-03
526 262 637 Established 1978-Aug-03
526 269 637 Established 1978-Aug-03
526 286 289 637 Established 1978-Aug-03
526 292 804 Abolished 1981-Aug-25
526 292.1 292.9 804 Established 1981-Aug-25
526 292.95 804 Established 1981-Aug-25
526 301 302 637 Established 1978-Aug-03
526 303 807 Abolished 1981-Sep-10
526 303.1 807 Established 1981-Sep-10
526 307.1 307.8 807 Established 1981-Sep-10
526 313 316 637 Established 1978-Aug-03
526 317 1002 Abolished 1985-Jul-02
526 317.1 1002 Established 1985-Jul-02
526 318 1002 Abolished 1985-Jul-02
526 318.2 1002 Established 1985-Jul-02
526 318.25 1002 Established 1985-Jul-02
526 318.3 1002 Established 1985-Jul-02
526 318.4 1002 Established 1985-Jul-02
526 318.41 318.45 1002 Established 1985-Jul-02
526 318.5 1002 Established 1985-Jul-02
526 318.6 1002 Established 1985-Jul-02
526 323.1 323.2 618 Established 1978-Mar-03
526 328.5 605 Established 1977-Oct-07
526 329.1 329.7 605 Established 1977-Oct-07
526 340.1 340.4 605 Established 1977-Oct-07
526 344.1 344.3 605 Established 1977-Oct-07
526 347.1 347.2 605 Established 1977-Oct-07
526 348.1 348.8 605 Established 1977-Oct-07
526 349 350 605 Abolished 1977-Oct-07
526 352.2 605 Established 1977-Oct-07
526 901 916 517 Established 1976-Apr-19
526 917 637 Established 1978-Aug-03
526 918 923 605 Established 1977-Oct-07
526 930 940 1002 Established 1985-Jul-02
526 941 1566 Established 1995-Sep-05
526 942 1583 Established 1996-Jan-02
526 943 1582 Established 1996-Jan-02
526 950 963 1002 Established 1985-Jul-02
527 100 604 828 Established 1982-Mar-23
528 1 10 637 Established 1978-Aug-03
528 11 697 Abolished 1979-Aug-08
528 12 26 637 Established 1978-Aug-03
528 26.5 828 Established 1982-Mar-23
528 27 45 637 Established 1978-Aug-03
528 46 47 697 Abolished 1979-Aug-08
528 48 74 637 Established 1978-Aug-03
528 74.5 828 Established 1982-Mar-23
528 75 103 637 Established 1978-Aug-03
528 103.5 828 Established 1982-Mar-23
528 104 111 637 Established 1978-Aug-03
528 111.3 828 Established 1982-Mar-23
528 111.5 828 Established 1982-Mar-23
528 112 129 637 Established 1978-Aug-03
528 130 136 697 Abolished 1979-Aug-08
528 137 158 637 Established 1978-Aug-03
528 158.5 828 Established 1982-Mar-23
528 159 176 637 Established 1978-Aug-03
528 177 178 697 Abolished 1979-Aug-08
528 179 196 637 Established 1978-Aug-03
528 197 697 Abolished 1979-Aug-08
528 198 212 637 Established 1978-Aug-03
528 213 697 Abolished 1979-Aug-08
528 214 220 637 Established 1978-Aug-03
528 221 697 Abolished 1979-Aug-08
528 222 230 637 Established 1978-Aug-03
528 231 697 Abolished 1979-Aug-08
528 232 245 637 Established 1978-Aug-03
528 245.3 828 Established 1982-Mar-23
528 245.5 828 Established 1982-Mar-23
528 246 272 637 Established 1978-Aug-03
528 273 697 Abolished 1979-Aug-08
528 274 295 637 Established 1978-Aug-03
528 295.3 295.5 828 Established 1982-Mar-23
528 296 303 637 Established 1978-Aug-03
528 304 308 637 Established 1978-Aug-03
528 308.1 308.8 872 Established 1982-Dec-20
528 309 872 Abolished 1982-Dec-20
528 309.1 872 Established 1982-Dec-20
528 310 637 Established 1978-Aug-03
528 311 697 Abolished 1979-Aug-08
528 312 329 637 Established 1978-Aug-03
528 329 960 Abolished 1984-Nov-29
528 329.1 960 Established 1984-Nov-29
528 330 332 637 Established 1978-Aug-03
528 333 334 697 Abolished 1979-Aug-08
528 334 339 637 Established 1978-Aug-03
528 339.3 828 Established 1982-Mar-23
528 339.5 828 Established 1982-Mar-23
528 404 697 Abolished 1979-Aug-08
528 405 425 637 Established 1978-Aug-03
528 480 503 517 Established 1976-Apr-19
528 901 906 637 Established 1978-Aug-03
528 930 937 915 Established 1983-Dec-13
528 950 928 Abolished 1984-Feb-28
530 200 233 1289 Established 1989-Jul-04
530 300 345 1044 Established 1986-May-06
530 350 427 1044 Established 1986-May-06
530 387 391 1399 Abolished 1992-Mar-03
530 387.1 387.3 1399 Established 1992-Mar-03
530 387.5 1399 Established 1992-Mar-03
530 387.7 1399 Established 1992-Mar-03
530 387.9 1399 Established 1992-Mar-03
530 388.1 1399 Established 1992-Mar-03
530 388.15 1399 Established 1992-Mar-03
530 388.2 1399 Established 1992-Mar-03
530 388.21 388.26 1399 Established 1992-Mar-03
530 388.3 1399 Established 1992-Mar-03
530 388.35 1399 Established 1992-Mar-03
530 388.4 388.7 1399 Established 1992-Mar-03
530 388.73 1399 Established 1992-Mar-03
530 388.75 1399 Established 1992-Mar-03
530 388.8 1399 Established 1992-Mar-03
530 388.85 1399 Established 1992-Mar-03
530 388.9 1399 Established 1992-Mar-03
530 389.1 389.8 1399 Established 1992-Mar-03
530 390.1 1399 Established 1992-Mar-03
530 390.5 1399 Established 1992-Mar-03
530 391.1 1399 Established 1992-Mar-03
530 391.3 1399 Established 1992-Mar-03
530 391.5 1399 Established 1992-Mar-03
530 391.7 1399 Established 1992-Mar-03
530 391.9 1399 Established 1992-Mar-03
530 500 507 964 Established 1984-Nov-30
530 800 859 1044 Established 1986-May-06
530 860 868 1399 Established 1992-Mar-03
531 1 946 Abolished 1984-May-24
532 1 946 Established 1984-May-24

  Helpful  
  Not Helpful  

The USPTO is currently improving our content to better serve you. Can you describe the problem?
 Share
 Print