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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7406580

Type

Invention Patent

Filing

08/09/1974

Publication

-

Progress at the INPI

  1. Filing08/09/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/06/80
  6. Expired11/17/92

The letters patent expired on 11/17/1992: 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: 06/12/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

06/12/1984

RPI 712

Anuidade - prazo legal encerrado

#18.2

04/17/1984

RPI 704

Concessão da patente

#16.1

05/06/1980

RPI 498

Carta-patente expirada

#21.1

11/17/1992

RPI 1146

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