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Official data from INPI

CONJUNTO DE HÉLICE

DeferidaInvention Patent

Application data

Number

PI8500114

Type

Invention Patent

Filing

01/04/1985

Publication

08/19/1986

Progress at the INPI

  1. Filing01/04/85
  2. Publication08/19/86
  3. Examination05/31/88
  4. Allowance07/18/89
  5. Grant01/09/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arno S/A

SP, BR

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Inventors

A. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

07/18/1989

RPI 978

Exigência - art. 36 da LPI

#6.1

01/10/1989

RPI 951

Solicitação de exame técnico

#4.1

05/31/1988

RPI 919

Publicação do pedido de patente

#3.1

08/19/1986

RPI 826

Pedido de patente depositado

#2.1

04/09/1985

RPI 755

Carta-patente expirada

#21.1

Patente extinta em 04/01/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

01/09/1990

RPI 1001

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