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Official data from INPI

APERFEICOAMENTOS EM ILUMINACAO ELETRONICA AUTOMATICA PARA ESTUDIO FOTOGRAFICO

ConcedidaUtility Model

Application data

Number

MU5701598

Type

Utility Model

Filing

12/19/1977

Publication

-

Progress at the INPI

  1. Filing12/19/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/28/83
  6. Expired12/31/24

The letters patent expired on 12/31/2024: 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: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. E. (pessoa física)

Inventors

R. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

Arquivamento - Art. 36 §1° da LPI

#11.2

10/26/1982

RPI 627

Exigência - art. 36 da LPI

#6.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

PATENTE EXTINTA EM 19/12/1987

12/31/2024

RPI 2817

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