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Official data from INPI

REGISTRO DE GÁS

ConcedidaInvention Patent

Application data

Number

PI8404873

Type

Invention Patent

Filing

09/21/1984

Publication

03/19/1985

Progress at the INPI

  1. Filing09/21/84
  2. Publication03/19/85
  3. Examination12/17/85
  4. Allowance09/08/87
  5. Grant09/26/89
  6. Terminated06/27/95

The patent was granted on 09/26/1989 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: 09/26/1989. 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

K. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/23/1989

RPI 970

110

02/28/1989

RPI 958

14.7

05/17/1988

RPI 917

Republicação - classificação IPC

#15.11

02/09/1988

RPI 903

Recurso

#12.1

01/19/1988

RPI 900

Deferimento

#9.1

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

12/17/1985

RPI 791

Solicitação de exame não realizada

#4.2

07/09/1985

RPI 768

Publicação antecipada

#3.2

03/19/1985

RPI 752

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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