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Official data from INPI

PROCESSO PARA PRODUÇÃO CONTÍNUA DE POLÍMERO HALOGENADO

Em AnáliseInvention Patent

Application data

Number

PI8301822

Type

Invention Patent

Filing

04/08/1983

Publication

06/05/1984

Progress at the INPI

  1. Filing04/08/83
  2. Publication06/05/84
  3. Examination07/29/86
  4. Allowance07/25/89
  5. Grant02/06/90
  6. Terminated08/29/95

The patent was granted on 02/06/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

N. N. (pessoa física)

US

R. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

481.279 · 04/01/1983

US

481.369 · 04/01/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/21/1989

RPI 996

Deferimento

#9.1

07/25/1989

RPI 979

Exigência - art. 36 da LPI

#6.1

06/14/1988

RPI 921

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

06/05/1984

RPI 711

Pedido de patente depositado

#2.1

05/24/1983

RPI 657

Anuidade - prazo legal encerrado

#18.2

08/29/1995

RPI 1291

Concessão da patente

#16.1

02/06/1990

RPI 1005

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