US PATENT SUBCLASS 340 / 853.9
.~ Including detail of subsurface signal storage (e.g., memory, recorder, register, etc.)


Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

853.1  DF  WELLBORE TELEMETERING OR CONTROL (E.G., SUBSURFACE TOOL GUIDANCE, DATA TRANSFER, ETC.) {14}
853.9.~ Including detail of subsurface signal storage (e.g., memory, recorder, register, etc.)


DEFINITION

Classification: 340/853.9

Including detail of subsurface signal storage (e.g., memory, recorder, register, etc.):

(under subclass 853.1) Subject matter including a particularly described feature or arrangement of electrical storage of signal values for subsequent retrieval.

(1) Note. Named or nominal inclusion of signal storage equipment is not considered particularly described as required for classification in this subclass; however, a particular arrangement of plural named storage devices is classified in this subclass.

(2) Note. An arrangement for storing and subsequently combining sequential signals to form a composite signal for transmission is classified in this subclass.

SEE OR SEARCH CLASS

360, Dynamic Magnetic Information Storage or Retrieval, appropriate subclasses for dynamic magnetic information storage not limited to wellbore telemetering.

365, Static Information Storage and Retrieval, appropriate subclasses for static information storage not limited to wellbore telemetering.

369, Dynamic Information Storage or Retrieval, appropriate subclasses for dynamic information storage not limited to wellbore telemetering.