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Official data from INPI

PROCESSO PARA PREPARAR UM MICROGEL CATIÔNICO, DISPERSÃO RESINOSA AQUOSA E PROCESSO PARA REVESTIR UM SUBSTRATO CONDUTOR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102648

Type

Invention Patent

Filing

06/24/1991

Publication

01/21/1992

Progress at the INPI

  1. Filing06/24/91
  2. Publication01/21/92
  3. Examination09/29/92
  4. Allowance08/10/99
  5. Grant02/22/00
  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

See this company's full portfolio

Inventors

S. Z. (pessoa física)

US

V. C. (pessoa física)

US

Technical data

Priority claims

US

543.501 · 06/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/06/2011

06/04/2013

RPI 2213

Transferência deferida

#25.1

Transferido de: PPG Industries, Inc.

07/05/2005

RPI 1800

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

OBS:. deferido de acordo com a lei 9279 de 14/05/96.

08/10/1999

RPI 1492

Exigência - art. 36 da LPI

#6.1

02/23/1999

RPI 1468

Solicitação de exame técnico

#4.1

09/29/1992

RPI 1139

Publicação do pedido de patente

#3.1

01/21/1992

RPI 1103

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