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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8107010

Type

Invention Patent

Filing

10/29/1981

Publication

07/13/1982
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Progress at the INPI

  1. Filing10/29/81
  2. Publication07/13/82
  3. Examination08/14/84
  4. Allowance03/17/87
  5. Grant09/29/87
  6. Terminated09/20/94

The patent was granted on 09/29/1987 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Doroy Mc Kee (Stockton) Limited

US

Inventors

B. C. (pessoa física)

B. N. (pessoa física)

K. P. (pessoa física)

Technical data

IPC Classification

C21B 13/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

07/14/1987

RPI 873

Deferimento

#9.1

03/17/1987

RPI 856

Exigência - art. 36 da LPI

#6.1

07/29/1986

RPI 823

Conhecimento de parecer técnico

#7.1

02/05/1985

RPI 746

Solicitação de exame técnico

#4.1

08/14/1984

RPI 721

14.1

05/02/1984

RPI 706

Publicação do pedido de patente

#3.1

07/13/1982

RPI 612

Pedido de patente depositado

#2.1

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

09/20/1994

RPI 1242

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