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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8007094

Type

Invention Patent

Filing

10/31/1980

Publication

-

Progress at the INPI

  1. Filing10/31/80
  2. Publication
  3. Examination06/07/83
  4. Allowance11/16/83
  5. Grant05/29/84
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telefunken Fernseh Und Rundfunk Gmbh

DE

Inventors

G. W. (pessoa física)

P. A. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

07/28/1987

RPI 875

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Deferimento

#9.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

06/07/1983

RPI 659

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

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