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Official data from INPI

PROCESSO PARA DEPOSITAR UM REVESTIMENTO DE ÓXIDO DE METAL QUE REFLETE LUZ INFRAVERMELHA E TEM ALTA TRANSMITÂNCIA E É ESSENCIALMENTE NÃO IRIDESCENTE, SOBRE UM SUBSTRATO DE VIDRO

PublicadaInvention Patent

Application data

Number

PI8805013

Type

Invention Patent

Filing

09/28/1988

Publication

05/09/1989

Progress at the INPI

  1. Filing09/28/88
  2. Publication05/09/89
  3. Examination10/23/90
  4. Allowance09/12/95
  5. Grant04/30/96
  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.

Talk to a specialist

Latest action published by the INPI: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG Industries, Inc

US

PPG Industries Ohio, INC

US

See this company's full portfolio

Inventors

V. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

103.090 · 09/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/09/1989

RPI 968

Pedido de patente depositado

#2.1

02/08/1989

RPI 955

Carta-patente expirada

#21.1

Patente extinta em 28/09/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

Transferido de: PPG Industries, Inc.

07/05/2005

RPI 1800

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

Conhecimento de parecer técnico

#7.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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