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Official data from INPI

TAMBOR DE DESCASCAMENTO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904397

Type

Invention Patent

Filing

08/31/1989

Publication

10/02/1990

Progress at the INPI

  1. Filing08/31/89
  2. Publication10/02/90
  3. Examination03/16/93
  4. Allowance06/28/94
  5. Grant03/28/95
  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

M. A. (pessoa física)

AT

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Inventors

J. L. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

2143/88 · 09/01/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/01/1994

RPI 1248

Deferimento

#9.1

06/28/1994

RPI 1230

Exigência - art. 36 da LPI

#6.1

11/16/1993

RPI 1198

Solicitação de exame técnico

#4.1

03/16/1993

RPI 1163

Publicação do pedido de patente

#3.1

10/02/1990

RPI 1035

Pedido de patente depositado

#2.1

04/24/1990

RPI 1015

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