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Official data from INPI

ADITIVO PARA PRODUTOS DE FUMO E SEUS ELEMENTOS DE FILTROS E PROCESSO PARA A FABRICACAO DESTE ADITIVO

ConcedidaInvention Patent

Application data

Number

PI7708549

Type

Invention Patent

Filing

12/23/1976

Publication

-

Progress at the INPI

  1. Filing12/23/76
  2. Publication
  3. Examination
  4. Allowance05/12/87
  5. Grant12/29/87
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RHODIACETA AG

Inventors

H. E. (pessoa física)

I. D. (pessoa física)

K. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Deferimento

#9.1

05/12/1987

RPI 864

Exigência - art. 36 da LPI

#6.1

09/02/1986

RPI 828

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

20.4

04/21/1992

RPI 1116

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