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Official data from INPI

APERFEICOMENTO EM MEQUINA FROMADORA DE ROLOS E SISTEMA PROPULSOR

Em AnáliseInvention Patent

Application data

Number

PI8001892

Type

Invention Patent

Filing

03/29/1979

Publication

-

Progress at the INPI

  1. Filing03/29/79
  2. Publication
  3. Examination12/21/82
  4. Allowance02/14/84
  5. Grant07/31/84
  6. Terminated06/21/88

The patent was granted on 07/31/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SPERRY SA

Inventors

C. W. (pessoa física)

P. C. (pessoa física)

W. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

14.7

08/27/1985

RPI 775

16.3

10/23/1984

RPI 731

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

12/21/1982

RPI 635

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