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Official data from INPI

CABEÇOTE DE EXTRUSÃO PARA PRODUZIR MATERIAL DE FOLHA, ESPECIALMENTE MATERIAL ELASTOMÉRICO, INTERNAMENTE REFORÇADO COM CORDÉIS DE ACONDICIONAMENTO RELATIVAMENTE CERRADO

PublicadaInvention Patent

Application data

Number

PI8901972

Type

Invention Patent

Filing

04/26/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/26/89
  2. Publication12/05/89
  3. Examination10/29/91
  4. Allowance11/05/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 12/05/1989. 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. M. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

67 386-A/88 · 04/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/06/1989

RPI 972

Carta-patente expirada

#21.1

Patente extinta em 26/04/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

11/05/1996

RPI 1353

14.4

11/22/1994

RPI 1251

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

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