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Official data from INPI

COMPOSIÇÃO CATALÍTICA; PROCESSO PARA PREPARAÇÃO DE METACROLEINA E PROCESSO PARA PREPARAÇÃO DE UM CATALISADOR DE ÓXIDO DE METAL CONTENDO SÍLICA.

ConcedidaInvention Patent

Application data

Number

PI7905703

Type

Invention Patent

Filing

09/05/1979

Publication

-

Progress at the INPI

  1. Filing09/05/79
  2. Publication
  3. Examination
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Terminated09/25/90

The patent was granted on 04/29/1986 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. D. (pessoa física)

H. C. (pessoa física)

US

Inventors

K. S. (pessoa física)

Technical data

Priority claims

US

939,645 · 09/05/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

6.2

04/13/1982

RPI 599

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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