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Official data from INPI

CAVILHA DE EXPANSÃO

PublicadaInvention Patent

Application data

Number

PI8804620

Type

Invention Patent

Filing

09/08/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing09/08/88
  2. Publication04/18/89
  3. Examination01/02/90
  4. Allowance02/18/92
  5. Grant11/24/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fischer-Werke Artur Fischer Gmbh & Co KG

DE

See this company's full portfolio

Inventors

A. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P3730211.6 · 09/09/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

02/08/1989

RPI 955

Carta-patente expirada

#21.1

Patente extinta em 08/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

07/07/1992

RPI 1127

Deferimento

#9.1

02/18/1992

RPI 1107

Exigência - art. 36 da LPI

#6.1

07/02/1991

RPI 1074

Solicitação de exame técnico

#4.1

01/02/1990

RPI 1000

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