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Official data from INPI

PROCESSO PARA PREPARAR UM VIDRO PARA APLICAÇÃO OFTÁLMICA

PublicadaInvention Patent
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Application data

Number

PI8805703

Type

Invention Patent

Filing

11/03/1988

Publication

07/18/1989
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Progress at the INPI

  1. Filing11/03/88
  2. Publication07/18/89
  3. Examination08/27/91
  4. Allowance03/10/98
  5. Grant11/24/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

US

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Inventors

J. B. (pessoa física)

FR

J. M. (pessoa física)

FR

Technical data

IPC Classification

C03C 3/093

Priority claims

FR

87.15278 · 11/04/1987

US

210.427 · 06/23/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/18/1989

RPI 978

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Carta-patente expirada

#21.1

Patente extinta em 24/11/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

03/10/1998

RPI 1420

Conhecimento de parecer técnico

#7.1

01/09/1996

RPI 1310

Conhecimento de parecer técnico

#7.1

12/06/1994

RPI 1253

Solicitação de exame técnico

#4.1

08/27/1991

RPI 1082

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