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Official data from INPI

COMPOSTO AGRICOLA,COMPOSICAO APROPRIADA E PROCESSO PARA O CONTROLE DO CRESCIMENTO DE VEGETACAO INDESEJAVEL

Em AnáliseInvention Patent

Application data

Number

PI8007674

Type

Invention Patent

Filing

11/30/1979

Publication

-

Progress at the INPI

  1. Filing11/30/79
  2. Publication
  3. Examination07/26/83
  4. Allowance05/01/90
  5. Grant10/30/90
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

See this company's full portfolio

Inventors

G. L. (pessoa física)

US

Technical data

Priority claims

US

098.723 · 11/30/1979

US

196.267 · 10/22/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

102

10/31/1989

RPI 993

Pedido de recurso

#12.3

04/12/1988

RPI 912

11.3

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

02/21/1984

RPI 696

Solicitação de exame técnico

#4.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

Concessão da patente

#16.1

10/30/1990

RPI 1039

Notificação para pagamento de retribuição

#13.1

08/21/1990

RPI 1029

Deferimento

#9.1

05/01/1990

RPI 1016

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