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Official data from INPI

COMPOSICAO POLIMERICA E PROCESSO PARA PREPARACAO DE UM POLIMERO

ConcedidaInvention Patent

Application data

Number

PI7804850

Type

Invention Patent

Filing

07/27/1977

Publication

-

Progress at the INPI

  1. Filing07/27/77
  2. Publication
  3. Examination
  4. Allowance07/12/88
  5. Grant02/28/89
  6. Terminated01/28/92

The patent was granted on 02/28/1989 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ICI AMERICA INC

See this company's full portfolio

Inventors

M. K. (pessoa física)

R. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/12/1988

RPI 925

Exigência - art. 36 da LPI

#6.1

10/20/1987

RPI 887

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

6.2

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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