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Official data from INPI

APARELHO DE VEDAÇÃO DE ÓLEO EM UM AMORTECEDOR HIDRÁULICO

ConcedidaInvention Patent

Application data

Number

PI8204535

Type

Invention Patent

Filing

08/02/1982

Publication

07/26/1983

Progress at the INPI

  1. Filing08/02/82
  2. Publication07/26/83
  3. Examination12/06/83
  4. Allowance12/04/84
  5. Grant12/31/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. S. (pessoa física)

JP

Inventors

T. F. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

114406/1981 · 08/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

10/01/1985

RPI 780

9.1.3

06/18/1985

RPI 765

9.1.3

02/12/1985

RPI 747

Deferimento

#9.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

12/06/1983

RPI 685

Publicação do pedido de patente

#3.1

07/26/1983

RPI 666

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Carta-patente expirada

#21.1

Patente extinta em 02/08/97

07/01/2008

RPI 1956

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