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Official data from INPI

SISTEMA DE AQUECIMENTO DE FORNOS PARA PANIFICACAO

Concessão AnuladaInvention Patent

Application data

Number

PI7703949

Type

Invention Patent

Filing

06/15/1977

Publication

-

Progress at the INPI

  1. Filing06/15/77
  2. Publication
  3. Examination
  4. Allowance10/26/82
  5. Grant
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 04/17/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. J. (pessoa física)

Inventors

D. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.4

04/17/1984

RPI 704

Notificação para pagamento de retribuição

#13.1

12/13/1983

RPI 686

110

09/27/1983

RPI 675

Recurso

#12.1

02/08/1983

RPI 642

Deferimento

#9.1

10/26/1982

RPI 627

Exigência - art. 36 da LPI

#6.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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