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Official data from INPI

Aparelho de filtração.

ConcedidaInvention Patent

Application data

Number

PI8006160

Type

Invention Patent

Filing

09/25/1980

Publication

-

Progress at the INPI

  1. Filing09/25/80
  2. Publication
  3. Examination
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allen Starling Johnson, Jr.

US

Inventors

J. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

076.942 · 09/26/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

05/02/1984

RPI 706

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Conhecimento de parecer técnico

#7.1

11/01/1983

RPI 680

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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