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Official data from INPI

PROCESSO PARA PREPARAR POLIMEROS OU COPOLIMEROS DE OLEFINAS,E COMPOSICOES CATALITICA

ConcedidaInvention Patent

Application data

Number

PI7705674

Type

Invention Patent

Filing

08/27/1976

Publication

-

Progress at the INPI

  1. Filing08/27/76
  2. Publication
  3. Examination
  4. Allowance02/09/88
  5. Grant08/30/88
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

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Inventors

K. N. (pessoa física)

M. S. (pessoa física)

T. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

Deferimento

#9.1

02/09/1988

RPI 903

11.8

08/11/1987

RPI 877

Retificação

#15.3

04/22/1987

RPI 861

Exigência - art. 36 da LPI

#6.1

05/17/1983

RPI 656

Republicação - classificação IPC

#15.11

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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