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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8401847

Type

Invention Patent

Filing

04/18/1984

Publication

11/27/1984

Progress at the INPI

  1. Filing04/18/84
  2. Publication11/27/84
  3. Examination04/09/85
  4. Allowance07/14/87
  5. Grant11/24/87
  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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bridgestone/ Firestone, Inc.

US

See this company's full portfolio

Inventors

L. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Deferimento

#9.1

07/14/1987

RPI 873

Republicação - classificação IPC

#15.11

05/19/1987

RPI 865

Exigência - art. 36 da LPI

#6.1

07/29/1986

RPI 823

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

11/27/1984

RPI 736

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Carta-patente expirada

#21.1

Patente extinta em 18/04/99

07/08/2008

RPI 1957

20.4

11/22/1994

RPI 1251

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