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Official data from INPI

COMPOSIÇÃO E PRODUTO CONTENDO CIMENTO

ConcedidaInvention Patent

Application data

Number

PI8102202

Type

Invention Patent

Filing

04/10/1981

Publication

10/13/1981

Progress at the INPI

  1. Filing04/10/81
  2. Publication10/13/81
  3. Examination01/26/82
  4. Allowance02/28/89
  5. Grant08/29/89
  6. Terminated08/30/94

The patent was granted on 08/29/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

A. H. (pessoa física)

GB

J. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8102201 · 04/11/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

02/28/1989

RPI 958

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Conhecimento de parecer técnico

#7.1

01/02/1985

RPI 741

Pedido de certificado de adição de invenção

#5.1

06/15/1982

RPI 608

Solicitação de exame técnico

#4.1

01/26/1982

RPI 588

Publicação do pedido de patente

#3.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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