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Official data from INPI

PROCESSO PARA PROPORCIONAR UMA RESPOSTA FOTOCRÔMICA A UM ARTIGO PLÁSTICO SINTÉTICO

Em AnáliseInvention Patent

Application data

Number

PI8601298

Type

Invention Patent

Filing

03/21/1986

Publication

12/02/1986

Progress at the INPI

  1. Filing03/21/86
  2. Publication12/02/86
  3. Examination06/02/87
  4. Allowance07/18/95
  5. Grant02/27/96
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG Industries, Inc

US

See this company's full portfolio

Inventors

C. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

717.618 · 03/29/1985

US

779.750 · 09/24/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/02/1987

RPI 867

Publicação do pedido de patente

#3.1

12/02/1986

RPI 841

Pedido de patente depositado

#2.1

10/14/1986

RPI 834

Carta-patente expirada

#21.1

Patente extinta em 21/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/27/1996

RPI 1317

Notificação para pagamento de retribuição

#13.1

11/28/1995

RPI 1304

Deferimento

#9.1

07/18/1995

RPI 1285

Republicação - classificação IPC

#15.11

11/12/1991

RPI 1093

Exigência - art. 36 da LPI

#6.1

06/18/1991

RPI 1072

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