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Official data from INPI

DETECTOR PARA UTILIZACAO EM UM ANALISADOR INFRAVERMELHO DE GAS

ConcedidaInvention Patent

Application data

Number

PI7804065

Type

Invention Patent

Filing

09/19/1977

Publication

-

Progress at the INPI

  1. Filing09/19/77
  2. Publication
  3. Examination
  4. Allowance10/06/87
  5. Grant06/28/88
  6. Expired11/30/93

The letters patent expired on 11/30/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

YOKOGAWA ELECTRIC WORKS LTD

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Inventors

I. H. (pessoa física)

K. M. (pessoa física)

M. T. (pessoa física)

M. K. (pessoa física)

T. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

14.4

02/02/1988

RPI 902

14.4

01/05/1988

RPI 898

Deferimento

#9.1

10/06/1987

RPI 885

130

09/23/1986

RPI 831

Deferimento (retificação)

#9.1.1

05/13/1986

RPI 812

14.4

12/20/1983

RPI 687

Recurso

#12.1

02/08/1983

RPI 642

Deferimento

#9.1

09/28/1982

RPI 623

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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