(under subclass 250) Subclass matter under having a combination of interconnected elements inseparably associated on or within a continuous substrate.
(1) Note. If a claimed preferred embodiment of a patent application includes details of means to apply a variable electrical signal to an IC amplifying device, or details of means to utilize the output of an IC amplifying device, that application is properly classified in this subclass.
(2) Note. If, however, a claimed preferred embodiment of a patent application is limited to details of an IC amplifying device, without details of the input or output (utilization) means, or the input or output (utilization) means are recited in name only, then the application is properly classified outside this class.
SEE OR SEARCH CLASS
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), appropriate subclasses for active solid-state devices, especially
115, 123, and 162-166 which are directed to devices involving amplification. See the (2) Note above.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
564+, for miscellaneous circuits which are integrated.
