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Official data from INPI

DISPOSITIVO DE PROTEÇÃO DE PERMUTADORES INSTALADOS NUM CONDUTO DE FUMAÇAS CARREGADAS COM FINAS PARTÍCULAS DE CINZAS

DeferidaInvention Patent

Application data

Number

PI8600692

Type

Invention Patent

Filing

02/19/1986

Publication

03/10/1987

Progress at the INPI

  1. Filing02/19/86
  2. Publication03/10/87
  3. Examination02/28/89
  4. Allowance11/14/89
  5. Grant08/28/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Stein Industrie

FR

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Inventors

J. M. (pessoa física)

FR

M. V. (pessoa física)

FR

R. B. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85 12 405 · 08/14/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Solicitação de exame técnico

#4.1

02/28/1989

RPI 958

Publicação do pedido de patente

#3.1

03/10/1987

RPI 855

Pedido de patente depositado

#2.1

08/05/1986

RPI 824

Carta-patente expirada

#21.1

Patente extinta em 19/02/2001

07/22/2008

RPI 1959

Republicação - classificação IPC

#15.11

12/24/1991

RPI 1099

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

05/08/1990

RPI 1017

9.1.3

01/16/1990

RPI 1002

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