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Official data from INPI

PROCESSO CATALÍTICO PARA PRODUZIR COPOLÍMERO DE ETILENO COM UM CATALISADOR QUE CONTÉM TI

ConcedidaInvention Patent

Application data

Number

PI7907472

Type

Invention Patent

Filing

11/19/1979

Publication

-

Progress at the INPI

  1. Filing11/19/79
  2. Publication
  3. Examination10/13/81
  4. Allowance11/13/84
  5. Grant04/29/86
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

A. N. (pessoa física)

US

F. K. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

085.313 · 10/26/1979

US

962.112 · 11/20/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

110

11/19/1985

RPI 787

Recurso

#12.1

02/20/1985

RPI 748

Deferimento

#9.1

11/13/1984

RPI 734

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

Arquivamento - Art. 36 §1° da LPI

#11.2

12/06/1983

RPI 685

Exigência - art. 36 da LPI

#6.1

10/25/1983

RPI 679

Exigência - art. 36 da LPI

#6.1

03/29/1983

RPI 649

Deferimento

#9.1

06/22/1982

RPI 609

Pedido de certificado de adição de invenção

#5.1

04/06/1982

RPI 598

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

20.4

10/15/1991

RPI 1089

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