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Official data from INPI

INSTRUMENTO E PROCESSO PARA MONITORAR UM INDICADOR QUE APRESENTA UMA MUDANÇA NAS SUAS PROPRIEDADES REFLETIVAS MEDIANTE A EXPOSIÇÃO A SUBPRODUTOS DE CRESCIMENTO MICROBIANO

Arquivada/ExtintaInvention PatentPCT · US1990002631

Application data

Number

PI9007378

Type

Invention Patent

Filing

05/14/1990

Publication

04/28/1992

PCT

US1990002631

Progress at the INPI

  1. Filing05/14/90
  2. Publication04/28/92
  3. Examination10/04/94
  4. Allowance11/10/98
  5. Grant04/27/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Akzo N.V.

NL

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Inventors

J. D. (pessoa física)

US

T. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/351,476 · 05/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

04/27/1999

RPI 1477

Deferimento

#9.1

11/10/1998

RPI 1453

Solicitação de exame técnico

#4.1

10/04/1994

RPI 1244

Notificação de entrada na fase nacional - PCT

#1.3

04/28/1992

RPI 1117

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