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Official data from INPI

COMPOSIÇÃO TERMOFIXA DE REVESTIMENTO EM PÓ

PublicadaInvention Patent

Application data

Number

PI8704996

Type

Invention Patent

Filing

09/28/1987

Publication

05/17/1988

Progress at the INPI

  1. Filing09/28/87
  2. Publication05/17/88
  3. Examination11/13/90
  4. Allowance10/26/93
  5. Grant05/31/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 05/17/1988. 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

M. K. (pessoa física)

US

P. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

912.463 · 09/29/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/17/1988

RPI 917

Pedido de patente depositado

#2.1

12/22/1987

RPI 896

Carta-patente expirada

#21.1

Patente extinta em 28/09/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

Transferido de: PPG Industries, Inc.

06/28/2005

RPI 1799

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

01/14/1992

RPI 1102

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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