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Official data from INPI

EMULSAO AQUOSA DE BETUME E BORRACHA E PROCESSO PARA A SUA PRODUCAO

ConcedidaInvention Patent
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Application data

Number

PI7804966

Type

Invention Patent

Filing

02/20/1978

Publication

-
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Progress at the INPI

  1. Filing02/20/78
  2. Publication
  3. Examination
  4. Allowance09/25/84
  5. Grant05/28/85
  6. Expired12/14/93

The letters patent expired on 12/14/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LABOFINA SA

SCREG ROUTES & TRAVAUX

Inventors

D. F. (pessoa física)

Technical data

IPC Classification

C08L 101/00C08L 95/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Republicação - classificação IPC

#15.11

09/25/1984

RPI 727

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

6.2

10/13/1981

RPI 573

Carta-patente expirada

#21.1

12/14/1993

RPI 1202

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