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Official data from INPI

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Em AnáliseInvention Patent
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Application data

Number

PI8107531

Type

Invention Patent

Filing

11/19/1981

Publication

08/17/1982
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Progress at the INPI

  1. Filing11/19/81
  2. Publication08/17/82
  3. Examination09/24/85
  4. Allowance12/16/86
  5. Grant07/28/87
  6. Terminated09/20/94

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.

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Latest action published by the INPI: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

D. J. (pessoa física)

F. B. (pessoa física)

R. J. (pessoa física)

Technical data

IPC Classification

H02P 1/42

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

01/03/1989

RPI 950

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

09/24/1985

RPI 779

Publicação do pedido de patente

#3.1

08/17/1982

RPI 617

Pedido de patente depositado

#2.1

01/05/1982

RPI 585

Anuidade - prazo legal encerrado

#18.2

09/20/1994

RPI 1242

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