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Official data from INPI

GRADE DIFUSORA

Em AnáliseUtility Model

Application data

Number

MU6401464

Type

Utility Model

Filing

09/10/1984

Publication

02/12/1985

Progress at the INPI

  1. Filing09/10/84
  2. Publication02/12/85
  3. Examination04/30/85
  4. Allowance07/14/87
  5. Grant01/26/88
  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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

JOSE MARIANO ZEPPELINI [BR]

Inventors

Z. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/21/1988

RPI 922

Concessão da patente

#16.1

01/26/1988

RPI 901

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

12/30/1986

RPI 845

Solicitação de exame técnico

#4.1

04/30/1985

RPI 758

Publicação antecipada

#3.2

02/12/1985

RPI 747

Pedido de patente depositado

#2.1

11/20/1984

RPI 735

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

20.4

05/15/1990

RPI 1018

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