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Official data from INPI

CONJUNTO DE VÁLVULA DE ERUPÇÃO (BOP) E BOMBA DE FUNDO DE POÇO, E, ACOPLAMENTO PARA USO NO MESMO

Em AnáliseInvention Patent

Application data

Number

PI8603632

Type

Invention Patent

Filing

07/31/1986

Publication

11/17/1987

Progress at the INPI

  1. Filing07/31/86
  2. Publication11/17/87
  3. Examination01/12/88
  4. Allowance11/27/90
  5. Grant06/25/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Intevep, S.A.

VE

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Inventors

G. H. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

US

817.684 · 01/10/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/12/1988

RPI 899

Publicação do pedido de patente

#3.1

11/17/1987

RPI 891

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Carta-patente expirada

#21.1

Patente extinta em 31/07/2001

07/22/2008

RPI 1959

20.10

12/29/1992

RPI 1152

20.4

12/10/1991

RPI 1097

Concessão da patente

#16.1

06/25/1991

RPI 1073

Notificação para pagamento de retribuição

#13.1

03/12/1991

RPI 1058

Deferimento

#9.1

11/27/1990

RPI 1043

Exigência - art. 36 da LPI

#6.1

07/31/1990

RPI 1026

6.2

01/16/1990

RPI 1002

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