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Official data from INPI

PROCESSO E APARELHO PARA TERMO-MECANICAMENTE TRANSFORMAR EM POLPA A MADEIRA

Em AnáliseInvention Patent

Application data

Number

PI8403147

Type

Invention Patent

Filing

06/28/1983

Publication

06/11/1985

Progress at the INPI

Technical opinion to answer
  1. Filing06/28/83
  2. Publication06/11/85
  3. Examination12/17/85
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 12/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KOPPERS CO INC [US]

Inventors

A. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/17/1985

RPI 791

Publicação do pedido de patente

#3.1

06/11/1985

RPI 764

Pedido de patente depositado

#2.1

09/04/1984

RPI 724

Retificação

#15.3

08/21/1990

RPI 1029

Conhecimento de parecer técnico

#7.1

03/13/1990

RPI 1009

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