(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISCO DE VIDRO PROCESSO PARA PRODUZIR DISCO DE VIDEO,E MOLDE PARA USO NA PRODUCAO EM MASSA DE DISCO DE VIDEO

Em AnáliseInvention Patent

Application data

Number

PI7500847

Type

Invention Patent

Filing

02/07/1975

Publication

-

Progress at the INPI

  1. Filing02/07/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 01/02/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. V. (pessoa física)

See this company's full portfolio

Inventors

J. M. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

01/02/1985

RPI 741

20.4

12/26/1984

RPI 740

20.4

12/18/1984

RPI 739

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.