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Official data from INPI

SISTEMA DE FECHO ISOLANTE DE CARLOR PARA ABERTURA DE DESCARGA DE PRESSAO DE PAREDES DIVISORIAS, PRINCIPALMENTE EM PREDIOS DE REATORES NUCLEARES

Em AnáliseInvention Patent

Application data

Number

PI8100346

Type

Invention Patent

Filing

01/23/1980

Publication

-

Progress at the INPI

  1. Filing01/23/80
  2. Publication
  3. Examination12/15/81
  4. Allowance01/02/85
  5. Grant07/30/85
  6. Terminated06/21/88

The patent was granted on 07/30/1985 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GRUENZWEIG & HARTMANN MONTAGE

KRAFTWERK UNION AG

Inventors

B. H. (pessoa física)

F. W. (pessoa física)

G. B. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

Exigência - art. 36 da LPI

#6.1

03/27/1984

RPI 701

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

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