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Official data from INPI

BASE DE VÁLVULA INDIVIDUAL COM QUATRO PASSAGENS PARA UM SISTEMA DE VÁLVULA REGULADOR DE PRESSÃO FLUÍDICA

Prazo de SigiloInvention Patent

Application data

Number

PI8903397

Type

Invention Patent

Filing

07/11/1989

Publication

06/05/1990

Progress at the INPI

  1. Filing07/11/89
  2. Publication06/05/90
  3. Examination09/11/90
  4. Allowance07/14/92
  5. Grant03/30/93
  6. Terminated10/24/95

The patent was granted on 03/30/1993 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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mac Valves, Inc

US

See this company's full portfolio

Inventors

J. N. (pessoa física)

US

R. F. (pessoa física)

Technical data

IPC Classification

Priority claims

US

280307 · 12/05/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

09/19/1989

RPI 987

Anuidade - prazo legal encerrado

#18.2

10/24/1995

RPI 1299

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

12/01/1992

RPI 1148

Deferimento

#9.1

07/14/1992

RPI 1128

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

Publicação do pedido de patente

#3.1

06/05/1990

RPI 1021

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