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Official data from INPI

SISTEMA DE CONTROLE DE CLORACAO COM PONTO DE INTERRUPCAO

ConcedidaInvention Patent
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Application data

Number

PI8301429

Type

Invention Patent

Filing

03/22/1982

Publication

11/29/1983
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Progress at the INPI

  1. Filing03/22/82
  2. Publication11/29/83
  3. Examination02/21/84
  4. Allowance08/26/86
  5. Grant06/02/87
  6. Terminated04/25/95

The patent was granted on 06/02/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

M. N. (pessoa física)

Technical data

IPC Classification

C02F 1/76

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/02/1987

RPI 867

Notificação para pagamento de retribuição

#13.1

12/09/1986

RPI 842

Deferimento

#9.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

04/30/1985

RPI 758

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação do pedido de patente

#3.1

11/29/1983

RPI 684

Pedido de patente depositado

#2.1

05/03/1983

RPI 654

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

Pedido de licença compulsória

#20.1

08/27/1991

RPI 1082

Pedido de licença compulsória

#20.1

08/20/1991

RPI 1081

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