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Official data from INPI

DISPOSITIVO E PROCESSO APERFEIÇOADOS DE LAVAGEM E DESVESICULAGEM DE MISTURAS GASOSAS

Concessão AnuladaInvention Patent

Application data

Number

PI7804123

Type

Invention Patent

Filing

06/28/1978

Publication

-

Progress at the INPI

  1. Filing06/28/78
  2. Publication
  3. Examination
  4. Allowance08/16/83
  5. Grant02/28/84
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 05/15/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

See this company's full portfolio

Inventors

C. D. (pessoa física)

FR

G. L. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

77 20097 · 06/30/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

05/15/1984

RPI 708

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

12/06/1983

RPI 685

Deferimento

#9.1

08/16/1983

RPI 669

15.0

09/28/1982

RPI 623

Exigência - art. 36 da LPI

#6.1

08/24/1982

RPI 618

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

Pedido de licença compulsória

#20.1

08/11/1992

RPI 1132

Pedido de licença compulsória

#20.1

08/04/1992

RPI 1131

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