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Official data from INPI

APARELHO PARA CONTROLAR UM REATOR DE POLIMERIZACAO;SISTEMA DE CONTROLE PARA UM REATOR TUBULAR DE POLIMERIZACAO;SISTEMA DE CONTROLE OTIMIZADOR PARA ESTE REATOR

ConcedidaInvention Patent

Application data

Number

PI8401765

Type

Invention Patent

Filing

04/25/1983

Publication

04/29/1986

Progress at the INPI

  1. Filing04/25/83
  2. Publication12/04/84
  3. Examination03/12/85
  4. Allowance08/12/86
  5. Grant03/31/87
  6. In force04/25/03

The patent was granted on 03/31/1987 and is in force until 04/25/2003. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:04/25/2003

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Latest action published by the INPI: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

A. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

3.3

06/10/1986

RPI 816

Publicação do pedido de patente

#3.1

04/29/1986

RPI 810

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

12/04/1984

RPI 737

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Retificação

#15.3

06/23/1992

RPI 1125

16.5

04/28/1992

RPI 1117

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