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Official data from INPI

ELEMENTO POROSO SINTERIZADO DESEMULSIFICADOR

Em AnáliseInvention Patent

Application data

Number

PI8603180

Type

Invention Patent

Filing

07/03/1986

Publication

03/08/1988

Progress at the INPI

Under appeal
  1. Filing07/03/86
  2. Publication03/08/88
  3. Examination07/12/88
  4. Refused04/06/93
  5. Grant
  6. In force

The application was refused by the INPI on 04/06/1993. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Britanite S/A Indústrias Químicas

PR, BR

See this company's full portfolio

Inventors

E. O. (pessoa física)

BR

J. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/12/1988

RPI 925

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B01J 17/04.

03/27/2018

RPI 2464

Indeferimento

#9.2

04/06/1993

RPI 1166

Conhecimento de parecer técnico

#7.1

05/12/1992

RPI 1119

14.4

06/11/1991

RPI 1071

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