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Official data from INPI

AERONAVE COM PAR DE ROTORES DE ROTAÇÃO EM SENTIDO CONTRÁRIO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001816

Type

Invention Patent

Filing

04/18/1990

Publication

06/11/1991

Progress at the INPI

  1. Filing04/18/90
  2. Publication06/11/91
  3. Examination09/08/93
  4. Allowance03/07/95
  5. Grant09/26/95
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. B. (pessoa física)

CH

Sky Disc Holding SA

CH

Inventors

F. B. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

1492/89 · 04/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/04/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

09/26/1995

RPI 1295

Deferimento

#9.1

03/07/1995

RPI 1266

Exigência - art. 36 da LPI

#6.1

07/26/1994

RPI 1234

Solicitação de exame técnico

#4.1

09/08/1993

RPI 1188

14.1

06/30/1992

RPI 1126

Publicação do pedido de patente

#3.1

06/11/1991

RPI 1071

Pedido de patente depositado

#2.1

07/31/1990

RPI 1026

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