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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8102346

Type

Invention Patent

Filing

04/15/1981

Publication

12/22/1981

Progress at the INPI

  1. Filing04/15/81
  2. Publication12/22/81
  3. Examination02/07/84
  4. Allowance03/11/86
  5. Grant10/27/87
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Seitz Enginger Noll Maschinenbau AG.

DE

Inventors

A. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

14.4

07/07/1987

RPI 872

14.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

07/01/1986

RPI 819

Deferimento

#9.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

05/21/1985

RPI 761

Exigência - art. 36 da LPI

#6.1

10/02/1984

RPI 728

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Publicação do pedido de patente

#3.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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