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Official data from INPI

APERFEIÇOAMENTO EM SISTEMA MISTURADOR BINÁRIO DE GASES

ConcedidaInvention Patent

Application data

Number

PI8005046

Type

Invention Patent

Filing

08/11/1980

Publication

04/06/1982

Progress at the INPI

  1. Filing08/11/80
  2. Publication04/06/82
  3. Examination06/22/82
  4. Allowance07/09/85
  5. Grant02/04/86
  6. In force08/11/00

The patent was granted on 02/04/1986 and is in force until 08/11/2000. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:08/11/2000

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Latest action published by the INPI: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Liquid Carbonic Indústrias S/A

RJ, BR

See this company's full portfolio

Inventors

D. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Republicação - classificação IPC

#15.11

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

Solicitação de exame técnico

#4.1

06/22/1982

RPI 609

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

20.8

04/01/1997

RPI 1374

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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