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Official data from INPI

PROCESSO PARA PREPARAR UM MATERIAL COPOLIMÉRICO PARA LENTE DE CONTATO; E PROCESSO PARA PREPARAR UM COPOLÍMERO HIDROGEL.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002045

Type

Invention Patent

Filing

05/02/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/02/90
  2. Publication08/13/91
  3. Examination05/05/92
  4. Allowance03/23/99
  5. Grant07/27/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bausch & Lomb Incorporated

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

US

R. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

346.204 · 05/02/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/05/2010

01/15/2013

RPI 2193

Alteração de sede deferida

#25.7

Alterada a sede conforme solicitado na petição 024315/RJ de 14/07/00.

10/17/2000

RPI 1554

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

03/23/1999

RPI 1472

Exigência - art. 36 da LPI

#6.1

12/12/1995

RPI 1306

Solicitação de exame técnico

#4.1

05/05/1992

RPI 1118

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/11/1990

RPI 1032

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