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Official data from INPI

CONJUNTO E PROCESSO PARA RETER, EM UMA SUPERFÍCIE DE SEDE DE VÁLVULA, UM ANEL DE VEDAÇÃO

PublicadaInvention Patent

Application data

Number

PI8703485

Type

Invention Patent

Filing

07/08/1987

Publication

03/22/1988

Progress at the INPI

  1. Filing07/08/87
  2. Publication03/22/88
  3. Examination12/11/90
  4. Allowance09/22/92
  5. Grant07/27/93
  6. Terminated10/17/95

The patent was granted on 07/27/1993 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: 03/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fisher Controls International Inc.

US

Posi-Seal Intrnational, Inc.

US

See this company's full portfolio

Inventors

A. P. (pessoa física)

US

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

883699 · 07/09/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/22/1988

RPI 909

Pedido de patente depositado

#2.1

09/29/1987

RPI 884

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

07/27/1993

RPI 1182

14.1

05/04/1993

RPI 1170

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Deferimento

#9.1

09/22/1992

RPI 1138

Exigência - art. 36 da LPI

#6.1

12/03/1991

RPI 1096

Solicitação de exame técnico

#4.1

12/11/1990

RPI 1045

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