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Official data from INPI

DISPOSITIVO INTERRUPTOR PARA AQUECEDORES ELÉTRICOS DE ÁGUA

Em AnáliseInvention Patent

Application data

Number

PI8501412

Type

Invention Patent

Filing

03/28/1985

Publication

11/04/1986

Progress at the INPI

  1. Filing03/28/85
  2. Publication11/04/86
  3. Examination01/06/87
  4. Allowance10/30/90
  5. Grant05/28/91
  6. Terminated12/24/96

The patent was granted on 05/28/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Produtos Elétricos Corona Ltda

SP, BR

See this company's full portfolio

Inventors

H. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/06/1987

RPI 846

Publicação do pedido de patente

#3.1

11/04/1986

RPI 837

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

02/13/1991

RPI 1054

Deferimento

#9.1

10/30/1990

RPI 1039

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