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Official data from INPI

VENTILADOR CIRCULAR GIRATORIO PARA CAMARAS DE SECAGEM DE CERAMICA

ConcedidaUtility Model

Application data

Number

MU6300870

Type

Utility Model

Filing

06/21/1983

Publication

10/18/1983

Progress at the INPI

  1. Filing06/21/83
  2. Publication10/18/83
  3. Examination02/21/84
  4. Allowance01/06/87
  5. Grant10/27/87
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MAQUINAS CERAMICAS DAVID LTDA [BR]

Inventors

D. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Notificação para pagamento de retribuição

#13.1

06/23/1987

RPI 870

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

05/20/1986

RPI 813

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação antecipada

#3.2

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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