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Official data from INPI

PROCESSO PARA LIMPEZA FISICO-QUIMICA DAS PAREDES INTERNAS DE REATORES

Em AnáliseInvention Patent
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Application data

Number

PI7705892

Type

Invention Patent

Filing

09/02/1976

Publication

-
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Progress at the INPI

  1. Filing09/02/76
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant07/26/83
  6. Terminated12/15/87

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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. K. (pessoa física)

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Inventors

J. M. (pessoa física)

P. M. (pessoa física)

Technical data

IPC Classification

C23G 5/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

05/25/1982

RPI 605

Conhecimento de parecer técnico

#7.1

11/24/1981

RPI 579

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