Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 273/121E
Name: Amusement devices: games > Surface projectile game; game element (e.g., target, etc.) or accessory therefor other than projectile, per se) > Ball games > Combined with projector > Return course > Ball elevator

Patents under this class:

Patent Number Title Of Patent Date Issued
8021239 Interactive water play apparatus Sep. 20, 2011
6257573 Device for supplying/retaining/checking balls for labyrinth-type games of chance Jul. 10, 2001
5465965 Rotating pinball bridge and drop Nov. 14, 1995
5417422 Pinball optical illusion techniques May. 23, 1995
5383663 Player controlled dump ramp for a pinball game Jan. 24, 1995
5335910 Pinball machine having a conveyor belt ball lift Aug. 9, 1994
4968031 Pinball machine with ball-launching ramps Nov. 6, 1990
4861037 Pinball runway and scoring feature Aug. 29, 1989
4848748 Ball lifter mechanism Jul. 18, 1989
4844447 Sound and visual display apparatus Jul. 4, 1989
4840375 Pinball machine Jun. 20, 1989
4822045 Rolling ball game Apr. 18, 1989
4805906 Pinball machine construction Feb. 21, 1989
4447057 Toy with balls May. 8, 1984
4032148 Game apparatus Jun. 28, 1977

  Recently Added Patents
Electronic device
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
Systems and methods for managing fleet services
Machine shop including computer system that interfaces with different legacy servers
Method of operating a split gate flash memory cell with coupling gate
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Process for producing a plasma protein-containing medicament with reduced concentration of citrate and metals
  Randomly Featured Patents
Racquet frames having a replaceable protective layer
Telephony remote control
Anti-fog controller for reversible air conditioning and heat pump HVAC system for electric vehicles
Machine for cleaning outer surface of pipes of a mainline
Portable audio device with a detachable control unit
Plastic bottle, having reinforcing means
Activating group VIII metal/alumina catalysts with hydrogen halide/halosilane/organic halide
Multi-conductor cable connector with integral grounding bus
Light emitting device and surface light source device
Low noise logic amplifier with nondifferential to differential conversion