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Official data from INPI

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Em AnáliseInvention Patent

Application data

Number

PI8701789

Type

Invention Patent

Filing

07/14/1987

Publication

02/02/1988

Progress at the INPI

  1. Filing07/14/87
  2. Publication02/02/88
  3. Examination04/04/89
  4. Allowance
  5. Grant
  6. In force

Published on 02/02/1988, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 04/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ebara-Udylite Co. Ltd

JP

O. C. (pessoa física)

US

Inventors

C. J. (pessoa física)

K. M. (pessoa física)

K. R. (pessoa física)

K. T. (pessoa física)

M. S. (pessoa física)

S. D. (pessoa física)

T. A. (pessoa física)

Pessoa física

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/04/1989

RPI 963

Publicação do pedido de patente

#3.1

02/02/1988

RPI 902

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Retificação

#15.3

11/01/1994

RPI 1248

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