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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI7407209

Type

Invention Patent

Filing

08/29/1974

Publication

-
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Progress at the INPI

  1. Filing08/29/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/10/80
  6. Expired11/24/92

The letters patent expired on 11/24/1992: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/10/1980. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Fujikura Cable Works, Ltd.

JP

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

H01B 13/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/10/1980

RPI 503

Carta-patente expirada

#21.1

11/24/1992

RPI 1147

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