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Official data from INPI

PROCESSO PARA TRATAMENTO SUPERFICIAL DE SILICATOS DE LÁTICE EM CAMADAS E PRODUTOS RESULTANTES.

Em AnáliseInvention PatentPCT · US1987000137

Application data

Number

PI8707394

Type

Invention Patent

Filing

01/21/1987

Publication

09/13/1988

PCT

US1987000137

Progress at the INPI

  1. Filing01/21/87
  2. Publication09/13/88
  3. Examination03/20/90
  4. Allowance
  5. Grant
  6. In force

Published on 09/13/1988, 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E.C.C. America, Inc.

US

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Inventors

C. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

887.320 · 07/22/1986

US

930.278 · 11/12/1986

US

943.669 · 12/17/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

09/13/1988

RPI 934

Retificação

#15.3

02/04/1992

RPI 1105

Solicitação de exame técnico

#4.1

03/20/1990

RPI 1010

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