Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps

Introduced: September 1968

Title

Titles differ between systems:

IPC: Details not provided for in groups and common to two or more basic types of discharge tubes or lamps

CPC: Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps

Full titles differ between systems:

IPC:

Details not provided for in groups and common to two or more basic types of discharge tubes or lamps

CPC:

Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

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H01J 7/02 Selection of substances for gas fillings; Specified operating pressure or temperature IPC+CPC Available in IPC and CPC
H01J 7/14 Means for obtaining or maintaining the desired pressure within the vessel IPC+CPC Available in IPC and CPC
H01J 7/24 Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space IPC+CPC Available in IPC and CPC
H01J 7/30 Igniting arrangements IPC+CPC Available in IPC and CPC
H01J 7/42 Means structurally associated with the tube or lamp for indicating defects or previous use IPC+CPC Available in IPC and CPC
H01J 7/44 One or more circuit elements structurally associated with the tube or lamp IPC+CPC Available in IPC and CPC

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

Class H01,2013–2023, worldwide · Source: EPO PATSTAT