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Official data from INPI

APERFEICOAMENTOS EM OU SOBRE UM DISPOSITIVO PARA FORMAR SULCOS DIVISORIOS

Em AnáliseInvention Patent

Application data

Number

PI7804302

Type

Invention Patent

Filing

02/28/1978

Publication

-

Progress at the INPI

  1. Filing02/28/78
  2. Publication
  3. Examination
  4. Allowance01/25/83
  5. Grant08/30/83
  6. Terminated06/14/88

The patent was granted on 08/30/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BRITISH STEEL CORP

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Inventors

M. C. (pessoa física)

S. N. (pessoa física)

S. P. (pessoa física)

T. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

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