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Official data from INPI

APERFEIÇOAMENTO EM GRADE DE DISCOS.

Em AnáliseUtility Model

Application data

Number

MU6401187

Type

Utility Model

Filing

07/26/1984

Publication

11/06/1984

Progress at the INPI

  1. Filing07/26/84
  2. Publication11/06/84
  3. Examination02/20/85
  4. Allowance10/06/87
  5. Grant06/28/88
  6. Expired10/04/94

The letters patent expired on 10/04/1994: 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: 07/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Baldan-Implementos Agrícolas S/A

SP, BR

See this company's full portfolio

Inventors

O. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença voluntária

#17.1

07/11/1989

RPI 977

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/06/1987

RPI 885

Exigência - art. 36 da LPI

#6.1

09/30/1986

RPI 832

Pedido de certificado de adição de invenção

#5.1

07/09/1985

RPI 768

Pedido de certificado de adição de invenção

#5.1

07/02/1985

RPI 767

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Publicação antecipada

#3.2

11/06/1984

RPI 733

Pedido de patente depositado

#2.1

09/25/1984

RPI 727

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

312

04/24/1990

RPI 1015

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