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Official data from INPI

APARELHO DE EXTRUSÃO DE MATRIZ DE TAMBOR DE MÚLTIPLOS ORIFÍCIOS

Em AnáliseInvention Patent

Application data

Number

PI8502926

Type

Invention Patent

Filing

06/18/1985

Publication

03/04/1986

Progress at the INPI

  1. Filing06/18/85
  2. Publication03/04/86
  3. Examination03/08/88
  4. Allowance09/28/93
  5. Grant05/31/94
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Goodyear Tire & Rubber Company

US

See this company's full portfolio

Inventors

D. W. (pessoa física)

US

J. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

625.644 · 06/28/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/08/1988

RPI 907

Publicação do pedido de patente

#3.1

03/04/1986

RPI 802

Pedido de patente depositado

#2.1

09/03/1985

RPI 776

Carta-patente expirada

#21.1

Patente extinta em 18/06/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

09/28/1993

RPI 1191

Exigência - art. 36 da LPI

#6.1

03/23/1993

RPI 1164

Exigência - art. 36 da LPI

#6.1

07/14/1992

RPI 1128

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