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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM VIDRO LEVEMENTE COLORIDO COMPATÍVEL COM TONS DE MADEIRA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102101

Type

Invention Patent

Filing

05/21/1991

Publication

01/07/1992

Progress at the INPI

  1. Filing05/21/91
  2. Publication01/07/92
  3. Examination07/06/93
  4. Allowance11/10/98
  5. Grant08/10/99
  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.

Talk to a specialist

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

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

545.723 · 06/29/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/05/2011

06/04/2013

RPI 2213

Transferência deferida

#25.1

Transferido de: PPG Industries, Inc.

06/07/2005

RPI 1796

Concessão da patente

#16.1

08/10/1999

RPI 1492

Deferimento

#9.1

11/10/1998

RPI 1453

Conhecimento de parecer técnico

#7.1

01/06/1998

RPI 1411

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Publicação do pedido de patente

#3.1

01/07/1992

RPI 1101

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