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Official data from INPI

DESGASEIFICADOR DE POLPA, SISTEMA DE TRATAMENTO DE POLPA E PROCESSO PARA DESGASEIFICAR POLPA

ConcedidaInvention Patent

Application data

Number

PI8203336

Type

Invention Patent

Filing

06/07/1982

Publication

05/24/1983

Progress at the INPI

  1. Filing06/07/82
  2. Publication05/24/83
  3. Examination08/06/85
  4. Allowance11/10/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kamyr, Inc.

US

See this company's full portfolio

Inventors

J. G. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

US

271.174 · 06/08/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

9.1.3

01/19/1988

RPI 900

Deferimento

#9.1

11/10/1987

RPI 890

Exigência - art. 36 da LPI

#6.1

12/30/1986

RPI 845

Solicitação de exame técnico

#4.1

08/06/1985

RPI 772

Publicação do pedido de patente

#3.1

05/24/1983

RPI 657

Pedido de patente depositado

#2.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

Patente extinta em 07/06/97

07/01/2008

RPI 1956

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