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Official data from INPI

SISTEMA DE SUSPENSÃO A MOLA PNEUMATICA APERFEIÇOADO PARA VEICULOS E UNIDADE DE FECHO DE MOLA PNEUMATICA EM COMBINAÇÃO COM ISOLADOR ELASTOMÉRICO

PublicadaInvention Patent

Application data

Number

PI8802437

Type

Invention Patent

Filing

05/18/1988

Publication

12/13/1988

Progress at the INPI

  1. Filing05/18/88
  2. Publication12/13/88
  3. Examination10/02/90
  4. Allowance10/15/91
  5. Grant05/26/92
  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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FIRESTONE TIRE & RUBBER CO [US]

See this company's full portfolio

Inventors

K. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

050.812 · 05/18/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Carta-patente expirada

#21.1

Patente extinta em 18/05/2003

09/02/2008

RPI 1965

20.4

11/22/1994

RPI 1251

Concessão da patente

#16.1

05/26/1992

RPI 1121

Republicação - classificação IPC

#15.11

05/12/1992

RPI 1119

Notificação para pagamento de retribuição

#13.1

02/18/1992

RPI 1107

Deferimento

#9.1

10/15/1991

RPI 1089

Solicitação de exame técnico

#4.1

10/02/1990

RPI 1035

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