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Official data from INPI

PROCESSO DE MOLDAGEM DE UMA ESTRUTURA DE VIDEO-DISCO,ELEMENTO OU PECA DE FOLHA OTICAMENTE TRANSPARENTE,VIDEO-DISCO,E,COMPOSICAO PLASTICA POLIMERICA TRANSPARENTE

ConcedidaInvention Patent

Application data

Number

PI7908591

Type

Invention Patent

Filing

12/28/1979

Publication

-

Progress at the INPI

  1. Filing12/28/79
  2. Publication
  3. Examination01/04/83
  4. Allowance10/15/85
  5. Grant05/27/86
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MCA DISCO VISION [US]

Inventors

H. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/15/1985

RPI 782

14.1

02/26/1985

RPI 749

14.4

01/22/1985

RPI 744

Exigência - art. 36 da LPI

#6.1

09/11/1984

RPI 725

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

01/04/1983

RPI 637

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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