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Official data from INPI

APARELHO DE FOLHA DE DRENAGEM.

ConcedidaInvention Patent

Application data

Number

PI7906164

Type

Invention Patent

Filing

09/26/1979

Publication

-

Progress at the INPI

  1. Filing09/26/79
  2. Publication
  3. Examination08/17/82
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Winbanks International, Inc

Inventors

M. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

967.864 · 12/08/1978

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

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Republicação - classificação IPC

#15.11

05/02/1984

RPI 706

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

6.2

03/01/1983

RPI 645

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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