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Official data from INPI

COMPOSICAO

ConcedidaInvention Patent

Application data

Number

PI8106485

Type

Invention Patent

Filing

10/08/1980

Publication

06/22/1982

Progress at the INPI

  1. Filing10/08/80
  2. Publication06/22/82
  3. Examination06/26/84
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Terminated08/07/90

The patent was granted on 11/29/1988 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T CHEMICALS INC [US]

Inventors

G. H. (pessoa física)

R. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

06/22/1982

RPI 609

Pedido de patente depositado

#2.1

11/24/1981

RPI 579

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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