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Official data from INPI

PROCESSO PARA CONSERTAR UM ARTIGO DE ELASTÔMERO REFORÇADO

Em AnáliseInvention Patent

Application data

Number

PI8601442

Type

Invention Patent

Filing

04/01/1986

Publication

12/09/1986

Progress at the INPI

  1. Filing04/01/86
  2. Publication12/09/86
  3. Examination12/20/88
  4. Allowance01/26/93
  5. Grant07/27/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Firestone Tire & Rubber Company

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

US

R. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

718.666 · 04/01/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/20/1988

RPI 948

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 01/04/2001

07/22/2008

RPI 1959

20.4

11/08/1994

RPI 1249

Concessão da patente

#16.1

07/27/1993

RPI 1182

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Notificação para pagamento de retribuição

#13.1

05/11/1993

RPI 1171

Deferimento

#9.1

01/26/1993

RPI 1156

Exigência - art. 36 da LPI

#6.1

06/09/1992

RPI 1123

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