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Official data from INPI

PROCESSO DE TRATAR UMA ESTRUTURA REFRATÁRIA, PROCESSO DE SOLDAGEM EM CERÂMICA E COMPOSIÇÃO EM PARTÍCULAS

PublicadaInvention Patent
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Application data

Number

PI8805839

Type

Invention Patent

Filing

11/04/1988

Publication

08/01/1989
View on INPI

Progress at the INPI

  1. Filing11/04/88
  2. Publication08/01/89
  3. Examination08/14/90
  4. Allowance12/01/98
  5. Grant06/01/99
  6. Expired12/18/12

The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Glaverbel

BE

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Inventors

P. R. (pessoa física)

BE

Technical data

IPC Classification

C04B 35/657C04B 35/66C04B 41/91F27D 1/16

Priority claims

GB

87 29 418 · 12/17/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/01/1989

RPI 980

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Carta-patente expirada

#21.1

Patente extinta em 01/06/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

06/01/1999

RPI 1482

Republicação - classificação IPC

#15.11

Alterada de Int. Cl4 C04B 35/62

12/01/1998

RPI 1456

Deferimento

#9.1

12/01/1998

RPI 1456

Exigência - art. 36 da LPI

#6.1

08/13/1996

RPI 1341

Exigência - art. 36 da LPI

#6.1

10/24/1995

RPI 1299

15.17

03/29/1994

RPI 1217

15.5

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

08/14/1990

RPI 1028

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