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Official data from INPI

GERADOR EÓLICO DE PÁS COM REGULAÇÃO HIDRÁULICA DO PASSO

PublicadaInvention Patent

Application data

Number

PI8901777

Type

Invention Patent

Filing

04/14/1989

Publication

11/28/1989

Progress at the INPI

  1. Filing04/14/89
  2. Publication11/28/89
  3. Examination03/03/92
  4. Allowance06/01/93
  5. Grant10/26/93
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Riva Calzoni SpA

IT

Inventors

D. C. (pessoa física)

E. D. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

20199 A/88 · 04/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/28/1989

RPI 997

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 14/04/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/01/1993

RPI 1174

Solicitação de exame técnico

#4.1

03/03/1992

RPI 1109

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