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Official data from INPI

DISPOSITIVO E PROCESSO PARA O RESFRIAMENTO DE CILINDROS

PublicadaInvention Patent

Application data

Number

PI8801801

Type

Invention Patent

Filing

04/14/1988

Publication

05/23/1989

Progress at the INPI

  1. Filing04/14/88
  2. Publication05/23/89
  3. Examination02/06/90
  4. Allowance07/12/94
  5. Grant03/28/95
  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: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lauener Engineering Ag

CH

Inventors

B. F. (pessoa física)

CH

R. R. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

04167/87 · 10/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/23/1989

RPI 970

Pedido de patente depositado

#2.1

08/02/1988

RPI 928

Carta-patente expirada

#21.1

Patente extinta em 14/04/2003

09/02/2008

RPI 1965

20.7

10/01/1996

RPI 1348

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/08/1994

RPI 1249

Deferimento

#9.1

07/12/1994

RPI 1232

Solicitação de exame técnico

#4.1

02/06/1990

RPI 1005

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