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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM ANTI-ESPUMANTE PARA SISTEMAS AQUOSOS E SUA APLICAÇÃO.

Em AnáliseInvention Patent
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Application data

Number

PI8102047

Type

Invention Patent

Filing

04/03/1981

Publication

10/06/1981
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Progress at the INPI

  1. Filing04/03/81
  2. Publication10/06/81
  3. Examination11/16/83
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Terminated01/17/89

The patent was granted on 04/29/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

H. H. (pessoa física)

S. E. (pessoa física)

Technical data

IPC Classification

C11D 3/00

Priority claims

DE

P 30 13 391.6 · 04/05/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

01/17/1989

RPI 952

16.3

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

11/16/1983

RPI 682

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

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