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Official data from INPI

CALCO PRE-EXTENSIVEL

Em AnáliseInvention Patent

Application data

Number

PI7800456

Type

Invention Patent

Filing

01/26/1977

Publication

-

Progress at the INPI

  1. Filing01/26/77
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant08/30/83
  6. Terminated01/28/92

The patent was granted on 08/30/1983 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. K. (pessoa física)

Inventors

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/20/1988

RPI 935

20.7

09/20/1988

RPI 935

16.3

10/25/1983

RPI 679

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

06/22/1982

RPI 609

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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