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Official data from INPI

BPMBA PARA MATERIAIS ESPESSOS, PRINCIPALMENTE PARA O TRANSPORTE DE CONCRETO.

ConcedidaInvention Patent

Application data

Number

PI8005186

Type

Invention Patent

Filing

08/15/1980

Publication

-

Progress at the INPI

  1. Filing08/15/80
  2. Publication
  3. Examination
  4. Allowance06/26/84
  5. Grant01/29/85
  6. Expired09/26/95

The letters patent expired on 09/26/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Friedrich Wilh.Schwing Gmbh.

DE

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Inventors

S. F. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 33 128.0 · 08/16/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/26/1984

RPI 714

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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