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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI7903625

Type

Invention Patent

Filing

06/07/1979

Publication

-
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Progress at the INPI

  1. Filing06/07/79
  2. Publication
  3. Examination02/24/82
  4. Allowance02/08/83
  5. Grant07/26/83
  6. Terminated07/27/93

The patent was granted on 07/26/1983 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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

C. W. (pessoa física)

Technical data

IPC Classification

H02M 3/135

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/07/1983

RPI 659

Deferimento

#9.1

02/08/1983

RPI 642

Republicação - classificação IPC

#15.11

11/23/1982

RPI 631

Exigência - art. 36 da LPI

#6.1

08/24/1982

RPI 618

Solicitação de exame técnico

#4.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

07/27/1993

RPI 1182

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