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Official data from INPI

SISTEMAS DE VÁLVULAS PARA CONTROLAR O FLUXO DE FLUÍDO SOB PRESSÃO ENTRE DOIS MEMBROS APROPRIADOS PARA SEREM INTERLIGADOS

Em AnáliseInvention Patent

Application data

Number

PI8605931

Type

Invention Patent

Filing

12/03/1986

Publication

09/15/1987

Progress at the INPI

  1. Filing12/03/86
  2. Publication09/15/87
  3. Examination11/07/89
  4. Allowance10/23/90
  5. Grant04/30/91
  6. Terminated06/18/96

The patent was granted on 04/30/1991 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ABB Vetco Gray Inc.

US

See this company's full portfolio

Inventors

R. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

805.028 · 12/04/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

09/15/1987

RPI 882

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Anuidade - prazo legal encerrado

#18.2

06/18/1996

RPI 1333

20.4

08/17/1993

RPI 1185

Republicação - classificação IPC

#15.11

05/14/1991

RPI 1067

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

02/05/1991

RPI 1053

Deferimento

#9.1

10/23/1990

RPI 1038

14.4

03/01/1990

RPI 1007

14.7

03/01/1990

RPI 1007

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