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Official data from INPI

AMORTECEDOR DE SOM DE SUCÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8703482

Type

Invention Patent

Filing

07/08/1987

Publication

03/22/1988

Progress at the INPI

  1. Filing07/08/87
  2. Publication03/22/88
  3. Examination07/05/88
  4. Allowance05/01/90
  5. Grant11/27/90
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Danfoss A/S.

DK

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Inventors

S. O. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 22 996.2 · 07/09/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/05/1988

RPI 924

Publicação do pedido de patente

#3.1

03/22/1988

RPI 909

Pedido de patente depositado

#2.1

09/29/1987

RPI 884

Carta-patente expirada

#21.1

Patente extinta em 08/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

08/21/1990

RPI 1029

Deferimento

#9.1

05/01/1990

RPI 1016

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