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Official data from INPI

TUBO DE RAIOS CATÓDICOS COMPREENDENDO UMA MÁSCARA DE SOMBRA COM CONTORNO APERFEIÇOADO

DeferidaInvention Patent

Application data

Number

PI8400834

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. Allowance10/03/89
  5. Grant09/25/90
  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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

US

See this company's full portfolio

Inventors

F. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

469.772 · 02/25/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/03/1989

RPI 989

Exigência - art. 36 da LPI

#6.1

03/21/1989

RPI 961

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

Concessão da patente

#16.1

09/25/1990

RPI 1034

14.1

06/19/1990

RPI 1023

Notificação para pagamento de retribuição

#13.1

02/01/1990

RPI 1004

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