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Official data from INPI

DISPOSIÇÕES EM AQUECEDORES ELETRICOS

ConcedidaUtility Model

Application data

Number

MU6500430

Type

Utility Model

Filing

04/09/1985

Publication

11/18/1986

Progress at the INPI

  1. Filing04/09/85
  2. Publication11/18/86
  3. Examination02/17/87
  4. Allowance11/01/88
  5. Grant08/29/89
  6. Expired10/03/95

The letters patent expired on 10/03/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Produtos Elétricos Corona Ltda

SP, BR

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Inventors

H. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Solicitação de exame técnico

#4.1

02/17/1987

RPI 852

Publicação do pedido de patente

#3.1

11/18/1986

RPI 839

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Carta-patente expirada

#21.1

10/03/1995

RPI 1296

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