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Official data from INPI

APERFEIÇOAMENTO EM IMPLEMENTOS AGRÍCOLAS

ConcedidaInvention Patent

Application data

Number

PI8304286

Type

Invention Patent

Filing

08/05/1983

Publication

02/21/1984

Progress at the INPI

  1. Filing08/05/83
  2. Publication02/21/84
  3. Examination07/10/84
  4. Allowance04/22/86
  5. Grant08/25/92
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. O. (pessoa física)

SP, BR

Inventors

P. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

110

06/28/1988

RPI 923

120

10/27/1987

RPI 888

Recurso

#12.1

08/26/1986

RPI 827

Deferimento

#9.1

04/22/1986

RPI 809

Exigência - art. 36 da LPI

#6.1

06/11/1985

RPI 764

Pedido de certificado de adição de invenção

#5.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

07/10/1984

RPI 716

Publicação antecipada

#3.2

02/21/1984

RPI 696

Pedido de patente depositado

#2.1

10/18/1983

RPI 678

Carta-patente expirada

#21.1

Patente extinta em 05/08/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

08/25/1992

RPI 1134

Retificação

#15.6

04/07/1992

RPI 1114

Retificação

#15.3

11/05/1991

RPI 1092

Concessão anulada

#16.2

09/03/1991

RPI 1083

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