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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8008246

Type

Invention Patent

Filing

12/16/1980

Publication

-

Progress at the INPI

  1. Filing12/16/80
  2. Publication
  3. Examination
  4. Allowance09/04/84
  5. Grant02/26/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hooker Chemicals & Plastics Corporation

US

Inventors

S. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Republicação - classificação IPC

#15.11

12/11/1984

RPI 738

Deferimento

#9.1

09/04/1984

RPI 724

14.1

04/10/1984

RPI 703

14.4

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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