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Official data from INPI

SISTEMA MULTICANAL DE DETECÇÃO ESPECTRAL USANDO FIBRA-ÓPTICA

Em AnáliseInvention Patent

Application data

Number

PI8703809

Type

Invention Patent

Filing

07/10/1987

Publication

01/31/1989

Progress at the INPI

  1. Filing07/10/87
  2. Publication01/31/89
  3. Examination11/14/89
  4. Allowance08/03/93
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Universidade Estadual de Campinas - Unicamp

SP, BR

See this company's full portfolio

Inventors

A. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/14/1989

RPI 995

Publicação do pedido de patente

#3.1

01/31/1989

RPI 954

Pedido de patente depositado

#2.1

09/06/1988

RPI 933

Carta-patente expirada

#21.1

Patente extinta em 10/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

01/18/1994

RPI 1207

Deferimento

#9.1

08/03/1993

RPI 1183

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

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