US PATENT SUBCLASS 174 / 17 R
.~ Boxes and housings

Current as of: June, 1999
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174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

8  DF  WITH FLUIDS OR VACUUM {12}
17 R.~ Boxes and housings {7}
17.05  DF  .~.~> Hermetic sealed envelope type (e.g., with exhaust stem) {3}
18  DF  .~.~> With bushing, terminal or lead-in
17 LF  DF  .~.~> Liquid filled
17 GF  DF  .~.~> Gas filled
17 SF  DF  .~.~> Solid filled
17 VA  DF  .~.~> Venting, absorption, expansion
17 CT  DF  .~.~> Closures, terminals, gaskets

Unofficial Alpha Subclasses: R LF GF SF VA CT

DEFINITION

Classification: 174/17

(under subclass 8) Structures, other than conduits, for housing electrical devices or apparatus.

(1) Note. For manholes, boxes and housings not limited to use with fluids, see this class, subclass 37 and indented subclasses, and 50 and indented subclasses, and the notes thereunder.

(2) Note. This subclass does not include conduit or cable end structures or joints, for which see this class, subclasses 19, 20, 21, and 22.

(3) Note. See section 7 of the class definition for housings and envelopes for electric lamps and electric space discharge devices included in this subclass.

(4) Note. Search Class 220, Receptacles subclasses 2.1+ for envelopes and housings for electric lamps and electric space discharge devices where no electrical structure is claimed. Search Class 313, Electric Lamp and Discharge Devices, appropriate subclasses for electric lamps and electric space discharge devices which are provided with an envelope, jacket or housing. See especially subclass 324 and the subclasses specified in the Notes thereto. Also, see section 7 of the class definition of Class 174.