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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM POLÍMERO HÍBRIDO ORGÂNICO E DE SILOXANO; E TRANSPARÊNCIA PLÁSTICA REVESTIDA RESISTENTE À ABRASÃO E RESISTENTE À RADIAÇÃO ULTRAVIOLETA

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9102698

Type

Invention Patent

Filing

06/26/1991

Publication

02/04/1992
View on INPI

Progress at the INPI

  1. Filing06/26/91
  2. Publication02/04/92
  3. Examination07/06/93
  4. Allowance06/29/99
  5. Grant11/03/99
  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.

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Latest action published by the INPI: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG Industries Inc

US

PPG Industries OHIO, INC.

US

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Inventors

C. L. (pessoa física)

US

H. F. (pessoa física)

US

J. B. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

C09D 139/06C09D 183/06

Priority claims

US

546.069 · 06/29/1990

US

546.076 · 06/29/1990

US

546.484 · 06/29/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/06/2011

06/04/2013

RPI 2213

Transferência deferida

#25.1

Transferido de: PPG Industries, Inc.

06/07/2005

RPI 1796

Concessão da patente

#16.1

11/03/1999

RPI 1504

Deferimento

#9.1

06/29/1999

RPI 1486

Exigência - art. 36 da LPI

#6.1

12/08/1998

RPI 1457

Exigência - art. 36 da LPI

#6.1

07/07/1998

RPI 1437

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Publicação do pedido de patente

#3.1

02/04/1992

RPI 1105

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