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Official data from INPI

GERADOR DE DIÓXIDO DE CLORO.

Em AnáliseInvention Patent
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Application data

Number

PI7907616

Type

Invention Patent

Filing

11/23/1979

Publication

-
View on INPI

Progress at the INPI

  1. Filing11/23/79
  2. Publication
  3. Examination
  4. Allowance02/14/84
  5. Grant08/28/84
  6. Expired05/02/95

The letters patent expired on 05/02/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/07/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Erco Industries Limited

Inventors

C. G. (pessoa física)

Technical data

IPC Classification

C01B 11/02

Priority claims

US

964681 · 11/29/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/07/1988

RPI 920

20.3

11/10/1987

RPI 890

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

08/02/1983

RPI 667

Exigência - art. 36 da LPI

#6.1

10/19/1982

RPI 626

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

Pedido de licença compulsória

#20.1

05/04/1993

RPI 1170

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