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Official data from INPI

SISTEMA DE SINCRONIZACAO AUTOMATICA DE SOM COM DIAPOSITIVOS PARA UTILIZACAO COM UM OU VARIOS PROJETORES DE SLIDES EM PARALELO

Em AnáliseInvention Patent

Application data

Number

PI7608541

Type

Invention Patent

Filing

12/20/1976

Publication

-

Progress at the INPI

  1. Filing12/20/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant10/26/82
  6. Terminated11/24/87

The patent was granted on 10/26/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. A. (pessoa física)

Inventors

R. N. (pessoa física)

S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Cessão de direito de exploração

#22.1

11/20/1984

RPI 735

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

12/22/1981

RPI 583

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