PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


Class Number: 256
 Class Title: FENCES

Subclass  Subclass
Number    Title

  1       MISCELLANEOUS
  2       BARBED
  3       .Guarded
  4       ..Visible
  5       .Fabrics
  6       .Strands
  7       ..Single
  8       ...Integral barb
  9       ..Sectional
  10      ELECTRIC
  11      TOP GUARDED
  12      .Unstable
  12.5    DRIFTAGE CONTROL
  13      FLOOD
  13.1    HIGHWAY GUARD
  14      TRACK GUARD
  15      .Rocking
  16      .Rotary
  17      .Bar
  18      ..Pronged
  19      EARTH, STONE, PLASTIC, AND WOODEN
  20      HEDGE
  21      METALLIC
  22      .Picket
  23      SUSPENDED
  24      PANEL
  25      .Inclosure
  26      .Hinged
  27      .Angle
  28      ..Tied
  29      .Tied
  30      ..Braced
  31      .Braced
  32      WIRE
  33      .All wire
  34      .Picket
  35      .Braced
  36      ..Trussed
  37      .Stretcher
  38      ..Gravity
  39      ..Spring
  40      ..Winder
  41      ...Multiple
  42      ...Bracket
  43      ...Internal
  44      ...Lateral
  45      .Fabrics
  46      .Strands
  47      .Connections
  48      ..Cross
  49      ...Facing strip
  50      ...Plasticc
  51      ....Reenforced
  52      ...Multiple
  53      ...Nonaligned slots
  54      ...Clamp
  55      ....Screw
  56      ....Wedge
  57      ...Tie
  58      ...No clip
  59      RAIL
  60      .Angle
  61      ..Tied
  62      .Tied
  63      ..Braced
  64      .Braced
  65      .Connections
  66      ..Plastic
  67      ..Adjustable
  68      ..Clamp
  69      ...Screw
  70      ...Wedge
  71      ..Tie
  72      ..No clip
  73      PANELS
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Compensator, spring
  DIG 2   Adjustable or falling fence
  DIG 3   Wire clamp
  DIG 4   Board fastener
  DIG 5   Metal post
  DIG 6   Building construction guard rail