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Official data from INPI

SERRA

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904253

Type

Invention Patent

Filing

08/24/1989

Publication

10/02/1990

Progress at the INPI

  1. Filing08/24/89
  2. Publication10/02/90
  3. Examination11/24/92
  4. Allowance11/03/93
  5. Grant05/31/94
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ernst Winter & Sohn (GmbH & CO)

DE

Inventors

D. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 29 160.6 · 08/27/1988

DE

P 38 30 819.3 · 09/09/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

11/03/1993

RPI 1196

Solicitação de exame técnico

#4.1

11/24/1992

RPI 1147

Publicação do pedido de patente

#3.1

10/02/1990

RPI 1035

Pedido de patente depositado

#2.1

04/17/1990

RPI 1014

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