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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7903089

Type

Invention Patent

Filing

05/18/1979

Publication

-

Progress at the INPI

  1. Filing05/18/79
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant
  6. Terminated07/20/93

The patent was granted 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: 09/21/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dyckerhoff & Widmann Ag.

DE

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

Anuidade - prazo legal encerrado

#18.2

07/20/1993

RPI 1181

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