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Official data from INPI

REATOR TUBULAR PARA PROCESSAMENTO DE MATERIAIS SOB TEMPERATURA E ATMOSFERA CONTROLADAS

Prazo de SigiloInvention Patent

Application data

Number

PI8802441

Type

Invention Patent

Filing

05/19/1988

Publication

01/02/1990

Progress at the INPI

  1. Filing05/19/88
  2. Publication01/02/90
  3. Examination10/02/90
  4. Allowance06/18/91
  5. Grant05/26/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paulista de Metais S/A

SP, BR

Inventors

F. R. (pessoa física)

BR

R. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Carta-patente expirada

#21.1

Patente extinta em 19/05/2003

09/02/2008

RPI 1965

20.4

03/01/1994

RPI 1213

20.7

03/01/1994

RPI 1213

20.4

09/01/1992

RPI 1135

20.7

09/01/1992

RPI 1135

Concessão da patente

#16.1

05/26/1992

RPI 1121

15.15

05/12/1992

RPI 1119

Republicação - classificação IPC

#15.11

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

10/15/1991

RPI 1089

Deferimento

#9.1

06/18/1991

RPI 1072

Solicitação de exame técnico

#4.1

10/02/1990

RPI 1035

Publicação do pedido de patente

#3.1

01/02/1990

RPI 1000

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