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Official data from INPI

CAIXA DEFLETORA DE VENTILAÇÃO PARA GABINETES FRIGORÍFICOS

ConcedidaUtility Model

Application data

Number

MU6301086

Type

Utility Model

Filing

07/28/1983

Publication

12/13/1983

Progress at the INPI

  1. Filing07/28/83
  2. Publication12/13/83
  3. Examination02/21/84
  4. Allowance01/13/87
  5. Grant09/29/87
  6. Expired11/22/94

The letters patent expired on 11/22/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eletrofrio S/A

PR, BR

Inventors

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/13/1987

RPI 847

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação antecipada

#3.2

12/13/1983

RPI 686

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

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