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Official data from INPI

PROTEÇÃO ANTI-CORROSÃO PARA UMA BUCHA DE EXPANSÃO ANCORADA EM UM FURO CEGO E DISPOSITIVO PARA O ADENSAMENTO DE UMA MASSA VEDANTE.

Em AnáliseInvention Patent

Application data

Number

PI8605384

Type

Invention Patent

Filing

10/31/1986

Publication

08/04/1987

Progress at the INPI

  1. Filing10/31/86
  2. Publication08/04/87
  3. Examination09/29/87
  4. Allowance03/13/90
  5. Grant10/30/90
  6. Terminated10/03/95

The patent was granted on 10/30/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fischer-Werke Artur Fischer GmbH & Co. Kg.

DE

See this company's full portfolio

Inventors

D. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 38 995.8 · 11/02/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

08/04/1987

RPI 876

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

10/30/1990

RPI 1039

Notificação para pagamento de retribuição

#13.1

07/24/1990

RPI 1025

Deferimento

#9.1

03/13/1990

RPI 1009

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