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Official data from INPI

REATOR DE REFINO

ConcedidaInvention Patent

Application data

Number

PI8204547

Type

Invention Patent

Filing

07/29/1982

Publication

03/07/1984

Progress at the INPI

  1. Filing07/29/82
  2. Publication03/07/84
  3. Examination02/20/85
  4. Allowance09/06/88
  5. Grant03/28/89
  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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas do Estado de São Paulo

SP, BR

See this company's full portfolio

Inventors

E. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Republicação - classificação IPC

#15.11

09/27/1988

RPI 936

Deferimento

#9.1

09/06/1988

RPI 933

15.5

02/17/1988

RPI 904

Exigência - art. 36 da LPI

#6.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

04/22/1986

RPI 809

Exigência - art. 36 da LPI

#6.1

10/01/1985

RPI 780

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Solicitação de exame não realizada

#4.2

07/17/1984

RPI 717

Publicação do pedido de patente

#3.1

03/07/1984

RPI 698

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Carta-patente expirada

#21.1

Patente extinta em 29/07/97

07/01/2008

RPI 1956

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