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Official data from INPI

PROCESSO PARA PRODUÇÃO DE ARTIGOS DE HIDROGEL CONFORMADOS E PROCESSO PARA PRODUÇÃO DE LENTES DE CONTATO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905959

Type

Invention Patent

Filing

11/27/1989

Publication

06/19/1990

Progress at the INPI

  1. Filing11/27/89
  2. Publication06/19/90
  3. Examination11/17/92
  4. Allowance07/07/98
  5. Grant12/29/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Johnson & Johnson

US

See this company's full portfolio

Inventors

E. R. (pessoa física)

US

J. H. (pessoa física)

US

T. K. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

US

276.007 · 11/25/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/11/2009

01/02/2013

RPI 2191

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

07/07/1998

RPI 1437

Exigência - art. 36 da LPI

#6.1

10/01/1996

RPI 1348

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

06/19/1990

RPI 1023

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

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