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Official data from INPI

COMPOSIÇÃO FOTOCRÔMICA ORGÂNICA E LENTE

Em ExigênciaInvention Patent

Application data

Number

PI8403260

Type

Invention Patent

Filing

07/02/1984

Publication

06/11/1985

Progress at the INPI

  1. Filing07/02/84
  2. Publication06/11/85
  3. Examination12/17/85
  4. Allowance10/26/93
  5. Grant05/31/94
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

See this company's full portfolio

Inventors

N. C. (pessoa física)

US

Technical data

Priority claims

US

521.309 · 08/08/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/03/1989

RPI 989

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

12/17/1985

RPI 791

Publicação do pedido de patente

#3.1

06/11/1985

RPI 764

Pedido de patente depositado

#2.1

09/04/1984

RPI 724

Carta-patente expirada

#21.1

Patente extinta em 02/07/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

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