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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7601073

Type

Invention Patent

Filing

02/20/1976

Publication

-

Progress at the INPI

  1. Filing02/20/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/27/83
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 02/18/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

320

02/18/1986

RPI 800

300

08/20/1985

RPI 774

201

04/30/1985

RPI 758

Pedido de licença voluntária

#17.1

12/26/1984

RPI 740

Concessão da patente

#16.1

12/27/1983

RPI 688

110

07/19/1983

RPI 665

Recurso

#12.1

03/02/1982

RPI 593

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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