USPC Class Details

Description: 968 horology / 968 horology/(139) indicating by visual means (by electric lamps subclass 576; indicating by acoustical means mechanically subclass 217, electrically subclass 580; acoustic signals at preselected times mechanically subclass 229, electrically subclass 580; optical time signals at preselected times mechanically subclass 244, electrically subclass 577; continuous time indication by electric means subclass 564; visible signalling arrangements g08b 5/00) [g04b 19/00] (170) clocks or watches with data indicators, e.g., calendar clocks or watches, etc.; clockwork calendars (indication by discs with numbers, in general subclass 162; link and gear work subclass 85; combination of the clockwork with a settable calendar subclass 398; calendars in general b42d 5/04, g09d 3/00; electrical counters and counting circuits h03k; clockwork for advertising g09f 23/16; devices for time computing where an unknown may be determined g02b) [g04b 19/24]

Hierarchy/Derived subclasses

968 / 139-> 170-> 171-> 172
   -> 173-> 174-> 175
     -> 176
   -> 177-> 178-> 179
    -> 180-> 181
     -> 182
    -> 183-> 184
     -> 185
    -> 186
  -> 187-> 188
   -> 189-> 190
    -> 191
    -> 192
  -> 193-> 194
  -> 195-> 196
   -> 197-> 198
    -> 199
    -> 200
  -> 201-> 202
   -> 203-> 204
    -> 205
    -> 206

uspto searches

Patent Apps in 968/170

Granted Patents in 968/170

Use the links above or do an advanced search in ppubs for:
(968/170.ccls. or 968/171.ccls. or 968/172.ccls. or 968/173.ccls. or 968/174.ccls. or 968/175.ccls. or 968/176.ccls. or 968/177.ccls. or 968/178.ccls. or 968/179.ccls. or 968/180.ccls. or 968/181.ccls. or 968/182.ccls. or 968/183.ccls. or 968/184.ccls. or 968/185.ccls. or 968/186.ccls. or 968/187.ccls. or 968/188.ccls. or 968/189.ccls. or 968/190.ccls. or 968/191.ccls. or 968/192.ccls. or 968/193.ccls. or 968/194.ccls. or 968/195.ccls. or 968/196.ccls. or 968/197.ccls. or 968/198.ccls. or 968/199.ccls. or 968/200.ccls. or 968/201.ccls. or 968/202.ccls. or 968/203.ccls. or 968/204.ccls. or 968/205.ccls. or 968/206.ccls.)

At about 35 search terms the uspto will give you this error "Too many search terms" The 35th term is bold.

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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