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Official data from INPI

CAIXA DE TRANSFERÊNCIA LEVE SINCRONIZADA DE FLEXIBILIDADE MÚLTIPLA E ALTA EFICIÊNCIA

Em ExigênciaInvention Patent

Application data

Number

PI8503554

Type

Invention Patent

Filing

07/23/1985

Publication

03/04/1987

Progress at the INPI

  1. Filing07/23/85
  2. Publication03/04/87
  3. Examination06/09/87
  4. Allowance12/26/90
  5. Grant07/30/91
  6. Terminated05/21/96

The patent was granted on 07/30/1991 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

QT Engenharia e Equipamentos Ltda.

SP, BR

Inventors

W. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

01/10/1989

RPI 951

14.7

04/12/1988

RPI 912

Solicitação de exame técnico

#4.1

06/09/1987

RPI 868

Publicação do pedido de patente

#3.1

03/04/1987

RPI 854

Pedido de patente depositado

#2.1

10/08/1985

RPI 781

Anuidade - prazo legal encerrado

#18.2

05/21/1996

RPI 1329

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

04/09/1991

RPI 1062

Deferimento

#9.1

12/26/1990

RPI 1047

Exigência - art. 36 da LPI

#6.1

04/03/1990

RPI 1012

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