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Official data from INPI

DISPOSITIVO DE FIBRA ÓTICA PARA MEDIÇÃO DA INTENSIDADE DE UMA CORRENTE ELÉTRICA

Arquivada/ExtintaInvention PatentPCT · DE1990000530

Application data

Number

PI9007548

Type

Invention Patent

Filing

07/12/1990

Publication

06/30/1992

PCT

DE1990000530

Progress at the INPI

  1. Filing07/12/90
  2. Publication06/30/92
  3. Examination03/07/95
  4. Allowance01/30/96
  5. Grant02/25/97
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. M. (pessoa física)

DE

Inventors

D. P. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 23 803.2 · 07/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/07/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

02/25/1997

RPI 1369

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/30/1996

RPI 1313

Solicitação de exame técnico

#4.1

03/07/1995

RPI 1266

4.2.1

03/07/1995

RPI 1266

Solicitação de exame não realizada

#4.2

05/18/1993

RPI 1172

Notificação de entrada na fase nacional - PCT

#1.3

06/30/1992

RPI 1126

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