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Official data from INPI

PROCESSO PARA PREPARACAO DE GELIFICANTE DE ARGILA ORGANOFILICA PREATIVADA E GRAXA LUBRIFICANTE ESPESSADA COM GELIFICANTE DE ARGILA ORGANOFILICA PREATIVADA

Em AnáliseInvention Patent

Application data

Number

PI8604431

Type

Invention Patent

Filing

10/28/1985

Publication

11/17/1987

Progress at the INPI

  1. Filing10/28/85
  2. Publication11/17/87
  3. Examination05/17/88
  4. Allowance
  5. Grant
  6. In force

Published on 11/17/1987, 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL CHEMICALS INC [US]

Inventors

C. A. (pessoa física)

C. A. (pessoa física)

D. (pessoa física)

K. J. (pessoa física)

K. M. (pessoa física)

M. D. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/17/1988

RPI 917

Publicação do pedido de patente

#3.1

11/17/1987

RPI 891

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Retificação

#15.3

09/17/1991

RPI 1085

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