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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE UM VIDRO FOTO-CRÔMICO.

Prazo de SigiloInvention Patent

Application data

Number

PI8903740

Type

Invention Patent

Filing

07/27/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing07/27/89
  2. Publication03/20/90
  3. Examination02/25/92
  4. Allowance11/11/97
  5. Grant08/25/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

US

See this company's full portfolio

Inventors

M. P. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

88 10269 · 07/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/17/1989

RPI 991

Carta-patente expirada

#21.1

Patente extinta em 27/07/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

11/07/1995

RPI 1301

Exigência - art. 36 da LPI

#6.1

06/20/1995

RPI 1281

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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