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Official data from INPI

TUBO DE RAIOS CATÓDICOS COM PLACA FRONTAL

ConcedidaInvention Patent

Application data

Number

PI8400833

Type

Invention Patent

Filing

02/23/1984

Publication

10/02/1984

Progress at the INPI

  1. Filing02/23/84
  2. Publication10/02/84
  3. Examination11/04/86
  4. Allowance04/18/89
  5. Grant10/24/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

US

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Inventors

F. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

469.774 · 02/25/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

08/15/1989

RPI 982

Deferimento

#9.1

04/18/1989

RPI 965

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

11/04/1986

RPI 837

Publicação do pedido de patente

#3.1

10/02/1984

RPI 728

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Carta-patente expirada

#21.1

Patente extinta em 23/02/99

07/08/2008

RPI 1957

Pedido de licença compulsória

#20.1

08/14/1990

RPI 1028

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