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Official data from INPI

Processo e instalação para regulagem da circulação de um piol ou depósito de resfriamento para materiais quentes a granel.

ConcedidaInvention Patent

Application data

Number

PI8103682

Type

Invention Patent

Filing

06/08/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/08/81
  2. Publication03/02/82
  3. Examination01/10/84
  4. Allowance07/08/86
  5. Grant03/31/87
  6. Terminated09/25/90

The patent was granted on 03/31/1987 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: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. A. (pessoa física)

AT

Inventors

B. G. (pessoa física)

Technical data

IPC Classification

Priority claims

AT

2983/80 · 06/06/1980

AT

2984/80 · 06/06/1980

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

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

01/10/1984

RPI 690

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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