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Official data from INPI

ARTIGO PLÁSTICO MULTI-CAMADA EXTRUDADO OU MOLDADO, FILME , GARRAFA MULTI-CAMADA, MISTURA POLÍMERICA, PROCESSO PARA PREPARAR UM ARTIGO DE POLIPROPILENO MOLDADO, E, PROCESSO PARA PREPARAR UM ARTIGO CONFORMADO MULTI-CAMADA.

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9004825

Type

Invention Patent

Filing

09/26/1990

Publication

09/10/1991
View on INPI

Progress at the INPI

  1. Filing09/26/90
  2. Publication09/10/91
  3. Examination11/16/93
  4. Allowance10/07/97
  5. Grant09/29/98
  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.

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Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rohm And Haas Company.

US

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Inventors

C. I. (pessoa física)

US

T. F. (pessoa física)

US

W. F. (pessoa física)

US

Technical data

IPC Classification

C08L 23/06C08L 51/06

Priority claims

US

413,943 · 09/28/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/09/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/29/1998

RPI 1449

Deferimento

#9.1

10/07/1997

RPI 1401

Exigência - art. 36 da LPI

#6.1

10/08/1996

RPI 1349

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Solicitação de exame técnico

#4.1

11/16/1993

RPI 1198

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

04/02/1991

RPI 1061

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