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Official data from INPI

SISTEMA DE AGLUTINANTES A BASE DE POLIURETANA PARA MISTURAS DE SUBSTANCIAS DE MOLDACAO PARA A PREPARACAO DE MOLDES PARA A FUNDICAO E NUCLEOS

ConcedidaInvention Patent

Application data

Number

PI7808620

Type

Invention Patent

Filing

12/31/1977

Publication

-

Progress at the INPI

  1. Filing12/31/77
  2. Publication
  3. Examination
  4. Allowance03/01/83
  5. Grant11/29/83
  6. Terminated09/18/90

The patent was granted on 11/29/1983 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

Inventors

B. T. (pessoa física)

B. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

10/04/1983

RPI 676

9.1.3

05/31/1983

RPI 658

Deferimento

#9.1

03/01/1983

RPI 645

6.2

02/02/1982

RPI 589

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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