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Official data from INPI

RETIFICADOR DE CORRENTE SIMETRICO EM PONTE,SEMI-COMANDADO

Em AnáliseInvention Patent

Application data

Number

PI7800090

Type

Invention Patent

Filing

01/06/1978

Publication

-

Progress at the INPI

  1. Filing01/06/78
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant11/30/82
  6. Terminated02/25/86

The patent was granted on 11/30/1982 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: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SEW EURODRIVE GMBH & CO

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Inventors

T. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

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