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Official data from INPI

APERFEIÇOAMENTO EM CABEÇOTE PARA MÁQUINA DE FABRICAR SACOS PLÁSTICOS

ConcedidaInvention Patent

Application data

Number

PI8101449

Type

Invention Patent

Filing

03/12/1981

Publication

-

Progress at the INPI

  1. Filing03/12/81
  2. Publication
  3. Examination10/13/81
  4. Allowance02/14/84
  5. Grant11/27/84
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

SP, BR

Maquinas NPU LTDA.

SP, BR

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

14.1

05/29/1984

RPI 710

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

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