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Official data from INPI

PROCESSO E APARELHO PARA REVESTIR UMA HASTE DE METAL COM UM METAL DIFERENTE

Em AnáliseInvention Patent

Application data

Number

PI7803964

Type

Invention Patent

Filing

06/22/1978

Publication

-

Progress at the INPI

  1. Filing06/22/78
  2. Publication
  3. Examination
  4. Allowance04/12/83
  5. Grant10/25/83
  6. Terminated06/24/86

The patent was granted on 10/25/1983 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

COPPERWELD CORP

Inventors

F. M. (pessoa física)

W. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/24/1986

RPI 818

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/12/1983

RPI 651

15.0

05/11/1982

RPI 603

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B32B 15/00; B32B 31/08.

03/27/2018

RPI 2464

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