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Official data from INPI

PROCESSO E APARELHO PARA CARACTERIZAÇÃO DE UMA PELÍCULA DE REVESTIMENTO DE SUPERFÍCIE

ConcedidaInvention Patent

Application data

Number

PI8300802

Type

Invention Patent

Filing

02/18/1983

Publication

11/16/1983

Progress at the INPI

  1. Filing02/18/83
  2. Publication11/16/83
  3. Examination11/05/85
  4. Allowance12/08/87
  5. Grant06/28/88
  6. Terminated04/18/95

The patent was granted on 06/28/1988 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

O. E. (pessoa física)

T. C. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

820493 · 02/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Deferimento

#9.1

12/08/1987

RPI 894

Republicação - classificação IPC

#15.11

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

03/24/1987

RPI 857

Solicitação de exame técnico

#4.1

11/05/1985

RPI 785

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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