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Official data from INPI

PAPEL PARA GRAVACAO SENSIVEL A PRESSAO

ConcedidaInvention Patent

Application data

Number

PI8005428

Type

Invention Patent

Filing

08/31/1979

Publication

-

Progress at the INPI

  1. Filing08/31/79
  2. Publication
  3. Examination11/17/81
  4. Allowance07/01/86
  5. Grant11/25/86
  6. Terminated08/02/94

The patent was granted on 11/25/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KUREHA CHEMICAL IND CO LTD [JP]

Inventors

K. O. (pessoa física)

Y. O. (pessoa física)

Y. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

100

07/01/1986

RPI 819

Petição de recurso

#12.2

04/17/1984

RPI 704

Republicação - classificação IPC

#15.11

02/21/1984

RPI 696

Indeferimento

#9.2

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

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