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Official data from INPI

Produto em folha separador de bateria.

ConcedidaInvention Patent

Application data

Number

PI8106063

Type

Invention Patent

Filing

09/22/1981

Publication

04/12/1983

Progress at the INPI

  1. Filing09/22/81
  2. Publication04/12/83
  3. Examination03/05/85
  4. Allowance01/06/87
  5. Grant07/28/87
  6. Terminated02/04/92

The patent was granted on 07/28/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

US

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Inventors

L. J. (pessoa física)

O. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

240.401 · 03/04/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

06/17/1986

RPI 817

Exigência - art. 36 da LPI

#6.1

10/08/1985

RPI 781

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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