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Official data from INPI

TUBO DE IMAGENS A CORES

ConcedidaInvention Patent

Application data

Number

PI7901089

Type

Invention Patent

Filing

02/24/1978

Publication

-

Progress at the INPI

  1. Filing02/24/78
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant02/22/83
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RCA CORP

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Inventors

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

Pedido de licença compulsória

#20.1

05/29/1990

RPI 1020

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