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Official data from INPI

APARELHO PARA RECUPERAÇÃO DE ÓLEO FLUTUANDO SOBRE A SUPERFÍCIE DA ÁGUA

ConcedidaInvention Patent

Application data

Number

PI8501380

Type

Invention Patent

Filing

03/27/1985

Publication

11/26/1985

Progress at the INPI

  1. Filing03/27/85
  2. Publication11/26/85
  3. Examination09/22/87
  4. Allowance01/24/89
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. M. (pessoa física)

GB

Inventors

J. T. (pessoa física)

M. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8408164 · 03/29/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/24/1989

RPI 953

Solicitação de exame técnico

#4.1

09/22/1987

RPI 883

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Carta-patente expirada

#21.1

Patente extinta em 27/03/2000

07/15/2008

RPI 1958

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