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Official data from INPI

PROCESSO PARA FABRICAR SACOS PROVIDOS DE FUNDOS DOBRADOS EM CRUZ.

ConcedidaInvention Patent

Application data

Number

PI7904459

Type

Invention Patent

Filing

07/13/1979

Publication

-

Progress at the INPI

  1. Filing07/13/79
  2. Publication
  3. Examination03/16/82
  4. Allowance10/13/82
  5. Grant04/26/83
  6. Expired04/18/95

The letters patent expired on 04/18/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Windmoller & Holscher

DE

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Inventors

F. R. (pessoa física)

Technical data

Priority claims

DE

P 28 31 036.3 · 07/14/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

02/16/1983

RPI 643

Deferimento

#9.1

10/13/1982

RPI 625

Solicitação de exame técnico

#4.1

03/16/1982

RPI 595

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B31B 29/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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