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Official data from INPI

ELEMENTO DE BASE ADAPTADO PARA SER DISPOSTO SOBRE UMA SERIE DE CONDUTORES TERMINAIS E UMA TUBULACAO DE ESCAPAMENTO DE UM TUBO ELETRONICO

ConcedidaInvention Patent

Application data

Number

PI7803064

Type

Invention Patent

Filing

05/18/1977

Publication

-

Progress at the INPI

  1. Filing05/18/77
  2. Publication
  3. Examination
  4. Allowance12/01/81
  5. Grant08/31/82
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 08/31/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RCA CORP

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Inventors

M. B. (pessoa física)

W. M. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

04/13/1982

RPI 599

Deferimento

#9.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

Pedido de licença compulsória

#20.1

05/29/1990

RPI 1020

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