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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM LATEX DE PARTÍCULAS COPOLIMÉRICAS ENXERTADAS

Em AnáliseInvention Patent

Application data

Number

PI8507100

Type

Invention Patent

Filing

11/27/1985

Publication

03/31/1987

Progress at the INPI

  1. Filing11/27/85
  2. Publication03/31/87
  3. Examination08/09/88
  4. Allowance06/25/91
  5. Grant04/28/92
  6. Terminated08/15/95

The patent was granted on 04/28/1992 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: 08/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. J. (pessoa física)

US

M. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

676.683 · 11/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/09/1988

RPI 929

Notificação de entrada na fase nacional - PCT

#1.3

03/31/1987

RPI 858

Anuidade - prazo legal encerrado

#18.2

08/15/1995

RPI 1289

Concessão da patente

#16.1

04/28/1992

RPI 1117

Republicação - classificação IPC

#15.11

11/12/1991

RPI 1093

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Deferimento

#9.1

06/25/1991

RPI 1073

Exigência - art. 36 da LPI

#6.1

01/02/1991

RPI 1048

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