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Official data from INPI

APERFEIÇOAMENTOS EM REGISTRO DE GÁS

Em AnáliseInvention Patent

Application data

Number

PI8306438

Type

Invention Patent

Filing

11/21/1983

Publication

05/08/1984

Progress at the INPI

  1. Filing11/21/83
  2. Publication05/08/84
  3. Examination03/12/85
  4. Allowance04/15/86
  5. Grant03/20/90
  6. Terminated05/09/95

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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Equipamentos NGK Rinnai Ltda

SP, BR

See this company's full portfolio

Inventors

M. Y. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/07/1989

RPI 994

110

05/30/1989

RPI 971

14.7

12/08/1987

RPI 894

Recurso

#12.1

08/26/1986

RPI 827

Deferimento

#9.1

04/15/1986

RPI 808

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Solicitação de exame não realizada

#4.2

11/13/1984

RPI 734

14.7

08/14/1984

RPI 721

14.4

08/07/1984

RPI 720

Publicação antecipada

#3.2

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

01/31/1984

RPI 693

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

Concessão da patente

#16.1

03/20/1990

RPI 1010

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