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Official data from INPI

PROCESSO PARA PRODUÇÃO DE NEGRO-DE-FUMO

Em AnáliseInvention Patent

Application data

Number

PI8802819

Type

Invention Patent

Filing

06/09/1988

Publication

01/03/1989

Progress at the INPI

  1. Filing06/09/88
  2. Publication01/03/89
  3. Examination05/30/89
  4. Allowance
  5. Grant
  6. In force

Published on 01/03/1989, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

Inventors

R. H. (pessoa física)

US

S. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

063.187 · 06/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/30/1989

RPI 971

Publicação do pedido de patente

#3.1

01/03/1989

RPI 950

Pedido de patente depositado

#2.1

11/01/1988

RPI 941

Retificação

#15.3

10/03/1995

RPI 1296

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