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Official data from INPI

PROCESSO E SISTEMA PARA DETERMINAÇÃO DAS CONSTANTES DE SINTONIA DE CIRCUITO DE CONTROLE DE PROCESSO

Em ExigênciaInvention Patent

Application data

Number

PI8400146

Type

Invention Patent

Filing

01/12/1984

Publication

08/28/1984

Progress at the INPI

  1. Filing01/12/84
  2. Publication08/28/84
  3. Examination08/19/86
  4. Allowance08/21/90
  5. Grant04/30/91
  6. Terminated12/24/96

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: 09/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

Inventors

W. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

461.787 · 01/28/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

Publicação do pedido de patente

#3.1

08/28/1984

RPI 723

Pedido de patente depositado

#2.1

03/20/1984

RPI 700

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

12/04/1990

RPI 1044

Deferimento

#9.1

08/21/1990

RPI 1029

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