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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8402986

Type

Invention Patent

Filing

06/19/1984

Publication

01/28/1986

Progress at the INPI

  1. Filing06/19/84
  2. Publication01/28/86
  3. Examination07/01/86
  4. Allowance12/08/87
  5. Grant06/28/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. S. (pessoa física)

SC, BR

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Deferimento

#9.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

06/16/1987

RPI 869

Solicitação de exame técnico

#4.1

07/01/1986

RPI 819

Publicação do pedido de patente

#3.1

01/28/1986

RPI 797

Pedido de patente depositado

#2.1

08/21/1984

RPI 722

Carta-patente expirada

#21.1

Patente extinta em 19/06/99

07/08/2008

RPI 1957

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