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Official data from INPI

SEM TITULO

Concessão AnuladaInvention Patent

Application data

Number

PI8101709

Type

Invention Patent

Filing

03/23/1981

Publication

-

Progress at the INPI

  1. Filing03/23/81
  2. Publication
  3. Examination12/08/81
  4. Allowance08/21/84
  5. Grant
  6. In force03/23/01

The patent is granted and in force until 03/23/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:03/23/2001

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Latest action published by the INPI: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NIPPON STEEL CORP

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Inventors

H. G. (pessoa física)

H. N. (pessoa física)

M. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.4

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

02/21/1984

RPI 696

Solicitação de exame técnico

#4.1

12/08/1981

RPI 581

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