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Official data from INPI

LENTE DE USO CONTÍNUO ALTAMENTE PERMEÁVEL AO OXIGÊNIO.

Em AnáliseInvention Patent

Application data

Number

PI8604940

Type

Invention Patent

Filing

01/28/1986

Publication

08/04/1987

Progress at the INPI

  1. Filing01/28/86
  2. Publication08/04/87
  3. Examination02/08/89
  4. Allowance10/19/93
  5. Grant05/31/94
  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: 02/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bausch & Lomb Incorporated

US

See this company's full portfolio

Inventors

N. S. (pessoa física)

US

Technical data

Priority claims

US

696.014 · 01/29/1985

US

722.121 · 04/10/1985

US

734.898 · 05/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/08/1989

RPI 955

Notificação de entrada na fase nacional - PCT

#1.3

08/04/1987

RPI 876

Carta-patente expirada

#21.1

Patente extinta em 28/01/2001

07/22/2008

RPI 1959

Alteração de sede deferida

#25.7

Alterada a sede conforme solicitada na petição Nº 024309/RJ de 14/07/2000.

10/03/2000

RPI 1552

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/19/1993

RPI 1194

Exigência - art. 36 da LPI

#6.1

10/06/1992

RPI 1140

Exigência - art. 36 da LPI

#6.1

09/24/1991

RPI 1086

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