Official data from INPI

MISTURA DE POLÍMEROS COM MELHORADA RESISTÊNCIA AO IMPACTO

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9004826

Type

Invention Patent

Filing

09/26/1990

Publication

09/10/1991

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Progress at the INPI

Filing09/26/90
Publication09/10/91
Examination11/16/93
Allowance08/25/98
Grant02/23/99
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

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Inventors

C. I. (pessoa física)

D. D. (pessoa física)

D. L. (pessoa física)

Technical data

IPC Classification

C08L 23/00

Priority claims

413,824 · 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

02/23/1999

RPI 1468

Deferimento

#9.1

08/25/1998

RPI 1444

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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