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Official data from INPI

SISTEMA E MÉTODO DE CONTROLE DE VÁLVULA DE CONTROLE DE FLUXO DE FLUIDO E SISTEMA DE CONTROLE DE ENGATE DE TRATOR

PublicadaInvention Patent

Application data

Number

PI8702016

Type

Invention Patent

Filing

04/03/1987

Publication

02/02/1988

Progress at the INPI

  1. Filing04/03/87
  2. Publication02/02/88
  3. Examination08/28/90
  4. Allowance04/30/91
  5. Grant03/31/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 02/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Massey-Ferguson Services N.V., firma comercial das Antilhas Holandesas

NL

Inventors

R. B. (pessoa física)

FR

W. G. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

GB

8608194 · 04/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/02/1988

RPI 902

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 03/04/2002

07/29/2008

RPI 1960

Pedido de licença compulsória

#20.1

06/28/1994

RPI 1230

Concessão da patente

#16.1

03/31/1992

RPI 1113

Republicação - classificação IPC

#15.11

11/19/1991

RPI 1094

Notificação para pagamento de retribuição

#13.1

08/13/1991

RPI 1080

Deferimento

#9.1

04/30/1991

RPI 1065

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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