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Official data from INPI

VÁLVULA DE ENCHIMENTO RÁPIDO DURANTE A OPERAÇÃO DO SISTEMA DE FREIO

Prazo de SigiloInvention Patent

Application data

Number

PI8902463

Type

Invention Patent

Filing

04/28/1989

Publication

01/23/1990

Progress at the INPI

  1. Filing04/28/89
  2. Publication01/23/90
  3. Examination04/21/92
  4. Allowance10/13/93
  5. Grant07/26/94
  6. Terminated12/31/96

The patent was granted on 07/26/1994 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: 07/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied-Signal Inc

US

See this company's full portfolio

Inventors

D. C. (pessoa física)

US

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

187.720 · 04/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/11/1989

RPI 977

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

07/26/1994

RPI 1234

Notificação para pagamento de retribuição

#13.1

03/08/1994

RPI 1214

Deferimento

#9.1

10/13/1993

RPI 1193

Solicitação de exame técnico

#4.1

04/21/1992

RPI 1116

Publicação do pedido de patente

#3.1

01/23/1990

RPI 1003

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