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Official data from INPI

PROCESSO PARA PRODUZIR UM MODIFICADOR PARA APERFEIÇOAR A RESISTÊNCIA AO IMPACTO E A RESISTÊNCIA DE LINHA DE MALHA DE RESINAS DE POLIÉSTER OU POLIAMIDA MEDIANTE MISTURA COM O MESMO

PublicadaInvention Patent
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Application data

Number

PI8801817

Type

Invention Patent

Filing

04/15/1988

Publication

11/14/1989
View on INPI

Progress at the INPI

  1. Filing04/15/88
  2. Publication11/14/89
  3. Examination12/17/91
  4. Allowance03/19/96
  5. Grant12/31/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

Inventors

S. P. (pessoa física)

US

Technical data

IPC Classification

C08F 255/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/14/1989

RPI 995

Pedido de patente depositado

#2.1

09/06/1988

RPI 933

Carta-patente expirada

#21.1

Patente extinta em 15/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

12/31/1996

RPI 1361

Deferimento

#9.1

03/19/1996

RPI 1320

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

12/17/1991

RPI 1098

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