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Official data from INPI

PROCESSO PARA PREPARAR UM COPOLIESTER POSSUINDO UMA ALTA TEMPERATURA DE TRANSIÇÃO VÍTREA; ARTIGO; E RECIPIENTE.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101437

Type

Invention Patent

Filing

04/10/1991

Publication

11/26/1991

Progress at the INPI

  1. Filing04/10/91
  2. Publication11/26/91
  3. Examination05/10/94
  4. Allowance01/26/99
  5. Grant07/27/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

The Goodyear Tire & Rubber Company

US

See this company's full portfolio

Inventors

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

509.525 · 04/16/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/04/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

01/26/1999

RPI 1464

Exigência - art. 36 da LPI

#6.1

08/18/1998

RPI 1443

4.1.2

06/21/1994

RPI 1229

Solicitação de exame técnico

#4.1

05/10/1994

RPI 1223

14.11

11/23/1993

RPI 1199

14.1

08/24/1993

RPI 1186

Publicação do pedido de patente

#3.1

11/26/1991

RPI 1095

Pedido de patente depositado

#2.1

10/08/1991

RPI 1088

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