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Official data from INPI

TRANSPORTADOR HELICOIDAL

Em AnáliseInvention Patent

Application data

Number

PI7805159

Type

Invention Patent

Filing

08/12/1977

Publication

-

Progress at the INPI

  1. Filing08/12/77
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/29/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMMERAAL NEDERLAND BV

Inventors

A. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

05/29/1984

RPI 710

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

09/21/1982

RPI 622

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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