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Official data from INPI

FECHO ROSQUEADO PARA RECIPIENTES.

Em AnáliseInvention Patent

Application data

Number

PI7700727

Type

Invention Patent

Filing

02/04/1977

Publication

-

Progress at the INPI

  1. Filing02/04/77
  2. Publication
  3. Examination
  4. Allowance11/17/81
  5. Grant08/31/82
  6. Terminated11/16/88

The patent was granted on 08/31/1982 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Flange & Manufacturing Co. Inc.

US

Inventors

D. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

03/23/1982

RPI 596

Deferimento

#9.1

11/17/1981

RPI 578

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