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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8304327

Type

Invention Patent

Filing

08/09/1983

Publication

02/21/1984

Progress at the INPI

  1. Filing08/09/83
  2. Publication02/21/84
  3. Examination07/10/84
  4. Allowance07/08/86
  5. Grant09/27/88
  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

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

07/12/1988

RPI 925

110

04/19/1988

RPI 913

120

10/27/1987

RPI 888

Recurso

#12.1

11/11/1986

RPI 838

Deferimento

#9.1

07/08/1986

RPI 820

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 09/08/98

07/01/2008

RPI 1956

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