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Official data from INPI

DISPOSITIVO DE ACOPLAMENTO DIFERENCIAL MAGNÉTICO

Em AnáliseInvention Patent

Application data

Number

PI8403201

Type

Invention Patent

Filing

06/29/1984

Publication

02/04/1986

Progress at the INPI

  1. Filing06/29/84
  2. Publication02/04/86
  3. Examination03/01/88
  4. Allowance07/18/89
  5. Grant03/20/90
  6. Terminated03/03/92

The patent was granted on 03/20/1990 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas e Aperfeiçoamento Industrial

SP, BR

Inventors

O. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/18/1989

RPI 978

Solicitação de exame técnico

#4.1

03/01/1988

RPI 906

Publicação do pedido de patente

#3.1

02/04/1986

RPI 798

Pedido de patente depositado

#2.1

09/04/1984

RPI 724

Anuidade - prazo legal encerrado

#18.2

03/03/1992

RPI 1109

Republicação - classificação IPC

#15.11

09/03/1991

RPI 1083

Concessão da patente

#16.1

03/20/1990

RPI 1010

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