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Official data from INPI

AMPLIFICADOR ÓTICO DE FIBRA ATIVA, COM PORÇÕES DE NÚCLEO DUPLO COM LARGA FAIXA DE COMPRIMENTO DE ONDA DE SINAL

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100626

Type

Invention Patent

Filing

02/07/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/07/91
  2. Publication10/29/91
  3. Examination07/20/93
  4. Allowance11/21/95
  5. Grant08/27/96
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 03/27/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pirelli Cavi SpA

IT

See this company's full portfolio

Inventors

G. G. (pessoa física)

IT

P. S. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

IT

19280 A/90 · 02/07/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era G02B 6/16.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 07/02/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

08/27/1996

RPI 1343

Deferimento

#9.1

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

07/20/1993

RPI 1181

14.4

09/29/1992

RPI 1139

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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