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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8100993

Type

Invention Patent

Filing

02/19/1981

Publication

-
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Progress at the INPI

  1. Filing02/19/81
  2. Publication
  3. Examination09/20/83
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Expired03/26/96

The letters patent expired on 03/26/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Interox.

BE

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Inventors

C. L. (pessoa física)

P. L. (pessoa física)

Technical data

IPC Classification

C23F 11/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Carta-patente expirada

#21.1

03/26/1996

RPI 1321

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SEM TITULO

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