Bushings ; Spinnerettes; Nozzles; Nozzle plates

Introduced: September 1968

Title

Titles differ between systems:

IPC: Bushings; Spinnerettes; Nozzles or nozzle plates

CPC: Bushings ; Spinnerettes; Nozzles; Nozzle plates

Full titles differ between systems:

IPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Bushings; Spinnerettes; Nozzles or nozzle plates

CPC:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Bushings ; Spinnerettes; Nozzles; Nozzle plates

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

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C03B 37/0805 CPC only CPC only
C03B 37/081 Indirect-melting bushings since 1990 IPC+CPC Available in IPC and CPC
C03B 37/083 Nozzles; Bushing nozzle plates (C03B37/095 takes precedence) since 1990 IPC+CPC Available in IPC and CPC
C03B 37/085 Feeding devices therefor since 1980 IPC+CPC Available in IPC and CPC
C03B 37/09 electrically heated since 1980 +1 CPC IPC+CPC Available in IPC and CPC
C03B 37/095 Use of materials therefor since 1980 IPC+CPC Available in IPC and CPC

Class C03,2013–2023, worldwide · Source: EPO PATSTAT

Class C03,2013–2023, worldwide · Source: EPO PATSTAT