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Official data from INPI

INSTALAÇÃO DE VEDAÇÃO MECÂNICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905301

Type

Invention Patent

Filing

10/18/1989

Publication

06/19/1990

Progress at the INPI

  1. Filing10/18/89
  2. Publication06/19/90
  3. Examination11/17/92
  4. Allowance07/19/94
  5. Grant03/28/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BEP Bestobell SA (PTY) Limited

ZA

Terratech Mining Services (PTY) Ltd

ZA

Inventors

R. H. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

ZA

88/7762 · 10/18/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/15/1994

RPI 1250

Deferimento

#9.1

07/19/1994

RPI 1233

14.4

11/23/1993

RPI 1199

14.7

10/26/1993

RPI 1195

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

06/19/1990

RPI 1023

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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