U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.

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Class 169 - Fire extinguishers

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85 Subclasses


Subclasses list

Definition

This class includes patents for apparatus and methods designed specifically for extinguishing fire and elements of such apparatus not classifiable in border existing classes; also apparatus capable of performing this function if designed to prevent fire by operating in anticipation of fire conditions.

Lines with other classes and within this class

Devices whose sole function is the extinguishing of fire by smothering are included in this class (169); but devices for smothering fire by closing doors, windows, shutters, and the like are excluded. For the latter see Class 49, Movable or Removable Closures, and Class 160, Flexible or Portable Closure, Partition, or Panel, especially subclass 1 and indented subclasses. Where the smothering and extinguishing actions are combined, the patent is classified in the appropriate subclass of this class (169).

Apparatus for the general purpose of distributing fluids is found in Class 137, Fluid Handling.

See Class 239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses for apparatus used for sprinkling and spraying of fluids.

 
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