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Official data from INPI

FORNO DE ROLOS.

ConcedidaInvention Patent

Application data

Number

PI7907596

Type

Invention Patent

Filing

11/22/1979

Publication

-

Progress at the INPI

  1. Filing11/22/79
  2. Publication
  3. Examination07/13/82
  4. Allowance05/22/84
  5. Grant02/25/86
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Welko Industriale S.P.A.

Inventors

W. U. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

30090 A/79 · 11/23/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/25/1986

RPI 801

Notificação para pagamento de retribuição

#13.1

12/03/1985

RPI 789

110

10/08/1985

RPI 781

Recurso

#12.1

09/11/1984

RPI 725

Deferimento

#9.1

05/22/1984

RPI 709

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

Pedido de certificado de adição de invenção

#5.1

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

14.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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