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Official data from INPI

SUPORTE PARA ELEMENTOS DE AQUECIMENTO, FIXADO EM PLACAS DE FIBRA CERÂMICA, PARA FORNOS OU SISTEMAS TÉRMICOS EM GERAL.

Em AnáliseInvention Patent

Application data

Number

PI8300129

Type

Invention Patent

Filing

01/13/1983

Publication

06/14/1983

Progress at the INPI

  1. Filing01/13/83
  2. Publication06/14/83
  3. Examination11/29/83
  4. Allowance04/09/85
  5. Grant10/29/85
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Babcock & Wilcox Fibras Cerâmicas Ltda

Inventors

R. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

08/15/1989

RPI 982

20.7

08/15/1989

RPI 982

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

11/29/1983

RPI 684

Publicação antecipada

#3.2

06/14/1983

RPI 660

Pedido de patente depositado

#2.1

03/01/1983

RPI 645

Carta-patente expirada

#21.1

Patente extinta em 13/01/98

07/01/2008

RPI 1956

20.4

03/30/1993

RPI 1165

20.4

10/22/1991

RPI 1090

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