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Official data from INPI

MATERIAL DE FRICÇÃO DE COMPOSIÇÃO ISENTA DE ASBESTO E ISENTA DE CHUMBO

ConcedidaInvention Patent

Application data

Number

PI7804527

Type

Invention Patent

Filing

07/13/1978

Publication

-

Progress at the INPI

  1. Filing07/13/78
  2. Publication
  3. Examination
  4. Allowance11/03/87
  5. Grant05/31/88
  6. Terminated04/27/93

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

A. C. (pessoa física)

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Inventors

G. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

815.637 · 07/14/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Deferimento

#9.1

11/03/1987

RPI 889

Exigência - art. 36 da LPI

#6.1

05/05/1987

RPI 863

Republicação - classificação IPC

#15.11

04/17/1984

RPI 704

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

6.2

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

04/27/1993

RPI 1169

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