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Official data from INPI

BOCAL DE MANGUEIRA APERFEICOADO

Em AnáliseInvention Patent

Application data

Number

PI7802755

Type

Invention Patent

Filing

05/04/1977

Publication

-

Progress at the INPI

  1. Filing05/04/77
  2. Publication
  3. Examination
  4. Allowance02/14/84
  5. Grant07/31/84
  6. Terminated10/03/89

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.

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Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTINGHOUSE AIR BRAKE CO

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Inventors

C. J. (pessoa física)

M. W. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

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

08/30/1983

RPI 671

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Exigência - art. 36 da LPI

#6.1

03/29/1983

RPI 649

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