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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8307009

Type

Invention Patent

Filing

04/18/1983

Publication

04/17/1984

Progress at the INPI

  1. Filing04/18/83
  2. Publication04/17/84
  3. Examination06/25/85
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

North Atlantic Technologies, Inc

US

Inventors

D. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Notificação de entrada na fase nacional - PCT

#1.3

04/17/1984

RPI 704

Carta-patente expirada

#21.1

Patente extinta em 18/04/98

07/01/2008

RPI 1956

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