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Official data from INPI

APARELHO PARA MEDIR A COR DE UM PEQUENO ARTIGO,E PROCESSOS PARA MEDIR A COR DE UM PEQUENO ARTIGO,CLASSIFICAR ARTIGOS DE ACORDO COM A REFLETANCIA E TRANSPARENCIA,MEDIR A REFLETANCIA E CLASSIFICAR ARTIGOS DE ACORDO COM SUA CONDICAO SUPERFICIAL

Em AnáliseInvention Patent

Application data

Number

PI7705711

Type

Invention Patent

Filing

08/27/1976

Publication

-

Progress at the INPI

  1. Filing08/27/76
  2. Publication
  3. Examination
  4. Allowance03/02/82
  5. Grant
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 06/22/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. D. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

06/22/1982

RPI 609

Deferimento

#9.1

03/02/1982

RPI 593

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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