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

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...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

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Class 475 - Planetary gear transmission systems or components

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354 Subclasses


Subclasses list

Definition

This is the class for planetary gear power transmission and elements thereof, such transmission being defined as an assembly of parts including interacting first and second gears each having a central axis and wherein, during at least one mode of operation, the axis of one of the gears follows a path extending around the axis of the other gear.

(1) Note. A nominal recitation of a device for applying power to, or receiving power from, a structure of this class will not exclude a patent from being placed in this class.

Lines with other classes and within this class

A method or apparatus for manufacturing a device of this class is not found herein (Class 475), but is found in an appropriate manufacturing class. See References to Other Classes, below.
 
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